Tag: shooting

Light Review: Cyansky H3 and H5 (built-in Red/Green Filter)

26 October, 2021

Cyansky have come up with a novel way to solve the problem of having multiple colours of light in a single device without many of the compromises multi-LED or LED swapping lights might have. Most people will have come across, or used, colour filters to change the output of a white beam, but these are easily forgotten or lost. In the Cyansky H3 and H5 hunting models, glass filters are completely contained within the head of the light and the patented mechanism lets you drop a red or green filter in front of the XHP35 HI LED with a simple twist of the control ring – nothing else needed. The H3 and H5 use the increasingly popular 21700 cell to provide more power and runtime, but can run on an 18650 or 2 CR123s for added versatility.
Join me in the detailed examination of these two hunting lights and see how they perform.

Video Overview

Starting with a look over these light in a short video.

This is what arrived from Cyansky –

A good look round the H3 – Things to look out for here are:
As you may have already seen in the video, first up are the contents of the box. The H3 has a belt hanger (rather than full holster) providing a head-up belt carry option. Moving round the H3 and we get onto the mode switch and filter control ring at the base of the head. The tail-switch is semi-recessed, so allowing for tail standing, but with cutouts to ease access to the switch. The stainless bezel ring is wide and well finished. And then a first look at one of the filters.
The H3 comes with a 21700 with built-in USB-C charging. As it arrives there is a plastic insulator to prevent accidental discharge in the light.

A good look round the H5 – Things to look out for here are:
With the H5, the details are the same as for the H3, so I won’t repeat them, the difference is in the much larger head and reflector to give extra beam range.
One small observation which doesn’t affect function at all is that the mode switch has room to move about and twist, so might look a little ‘off’. This doesn’t affect function at all, and is only mentioned in case you see the button looking slightly twisted (this is the same for both models).

The Remote Switch and scope mount:
The supplied remote switch replaces the tail-cap of either the H3 or H5. The remote switches are in a rail-mount unit, and you have a momentary only switch, plus a forward clicky latching switch much like the original tail switch.
The scope mount is basic and easy to use, but I would not use it for heavy duty setups. For smaller calibers and for quick tool-less mounting it works well, and has enough stand off for the H3 or H5.

The Cyansky special feature – built-in colour filters:
Now for a set of images to just show the built-in filter change. I’ve used the H3 here as with the smaller head it is easier to see the filter better than with the H5. First no filter – with the filter holder just having a little bit of extra reflector round the base of the LED. Then part of the way to dropping a filter in place (this is NOT how you use it, just showing the filter holder disk rotating). Finally with the red and green glass filters shown in place over the LED.

The beam

Please be careful not to judge tint based on images you see on a computer screen. Unless properly calibrated, the screen itself will change the perceived tint.

The indoor beamshot is intended to give an idea of the beam shape/quality rather than tint. All beamshots are taken using daylight white balance. The woodwork (stairs and skirting) are painted Farrow & Ball “Off-White”, and the walls are a light sandy colour called ‘String’ again by Farrow & Ball. I don’t actually have a ‘white wall’ in the house to use for this, and my wife won’t have one!

Stepping through these beamshots we have the H3 white beam, then H5 white beam, and as you go through the gallery it is H3 then H5 to show a direct comparison on each colour indoors and out.

Batteries and output:

The two models runs on 21700 cells. Logging the built-in USB-C charging gives these traces for the cell provided with each light.

Please note, all quoted lumen figures are from a DIY integrating sphere, and according to ANSI standards. Although every effort is made to give as accurate a result as possible, they should be taken as an estimate only. The results can be used to compare outputs in this review and others I have published.

The Output table also includes the manufacturer specified lumens for comparison.

For the runtime trace, only the highest and lowest output colours were used (white and red) and all traces were run on maximum power.

The H3 and H5 in use

The first aspect to mention is how the H3 and H5 themselves compare. Actually this photo doesn’t show it accurately, but from the control ring to tail-cap, the H3 and H5 are identical. Not a surprise as they run on the same cell, have the some output specifications (apart from beam range), and have the same controls. So when holding them, they are the same for grip and controls.

With the larger head, and larger reflector, the H5 does have the edge in overall output, and it focuses the beam more for a longer reach. This gallery shows some longer distant photos on a golf course driving range. The H3 and H5 beams compared directly. The focus of the H5 is clearly visible at these longer ranges.

Using a zoom rifle scope this gallery has a set of images at the same exposure to show the gain in distance the H5 has over the H3. The magnification is set to 8x in this first gallery.
Important to note is that the distance markers the scope is aimed at are 250 yards, and that the H3 is still usable on white output, but struggles a bit at this range on the coloured output.
Also bear in mind that I am using a .22lr on this course, so 250 yards it beyond the limit I would take a shot.

Now taking the scope to 16x magnification. Although all the images here are the same exposure, I have had to use a longer exposure than for the 8x magnification. At this range and magnification the H3 was pushed too far. the H5 was still working well.
This was to test the limits for range and scope magnification. (At 32x magnification I could not get any photos to come out.)

All of the above proves the H3 and H5 work well on or off a rifle, and the coloured output filters, being built-in, are so convenient, allowing for changes of output colour with nothing but a turn of the control ring.
Although I normally use dedicated coloured lights (so the LED is red or green) due to being most efficient and having the best quality of beam, it means I need to carry entire replacement lights to change colour. There are also LED swapping lights on the market but these compromise the thermal path as the heat sink has to move. With the H3 and H5, the single LED has an optimal thermal path for heat sinking.
Using filters on any light does reduce efficiency as you are ‘wasting’ up to 93% of the actual output (in the case of the red 1306lm down to 94lm). This is the cost of the convenience of instant access to red green or white light.

As long as you have a suitable rail to mount the remote switch on, this switch works really well. By including both a dedicated momentary switch, and a latching forward-clicky switch that gives you momentary and permanent on options, you have all you might want. If you don’t have a rail in the right place, this switch won’t really work for you, so consider this before choosing.

If you normally use a dedicated coloured light, then do you switch to the H3 and H5? – if you ever have a need to change between red, white, and green, then the all-in-one solution these Cyansky lights give you allows you to stop carrying additional separate lights.
If you use, or would consider using colour filters, then the H3 and H5 are no-brainers. Why would you want external filters you can lose, that are often a plastic filter material, when you can have self-contained selectable glass filters?

Review Summary
The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Using filters is not efficient compared to dedicated coloured lights.
The mode button can look a little twisted as it has a little too much room to move.
Basic belt hanger provided.

_______________________________________________
Things I like
_______________________________________________
Glass filters are used.
Simple turn of the control ring to change filter colour.
21700 power (plus can use 18650 or CR123 if needed).
Supplied 21700 is USB-C chargeable.
Good choice of beam pattern between the H3 and longer reaching H5.

You can find the Official Cyansky Store Here, if you would like to get hold of these lights. (I have no affiliation and get no reward for you buying from this link).

Light Review: Fenix TK30 White Laser LEP

4 October, 2020

LEP, what is LEP? Laser Excited Phosphor, the new super thrower with a highly focused beam; and I was certainly excited to try out the Fenix (see MyFenix in the UK) TK30 White LEP light. I first came across the concept of LEP to be used as a long range tactical scope illuminator for snipers, and there is no doubt this is a highly specialised type of light. For long range scope illumination it is outstanding, and for the general lighting enthusiast it is a lightsaber, with near laser beam like projection.

First up is a video which covers the basics of a look round the TK30 and some outdoor video to show the incredible beam. This page has a lot more detail including the measured output figures, runtime graph and photos of the beam.

What is in the box?:

A good look round the TK30 – Things to look out for here are:
The TK30 comes with an excellent belt holster, and a 21700 cell that has a built-in USB-C charging port (in the cell, not the TK30).

The beam

Please be careful not to judge tint based on images you see on a computer screen. Unless properly calibrated, the screen itself will change the perceived tint.

The indoor beamshot is intended to give an idea of the beam shape/quality rather than tint. All beamshots are taken using daylight white balance. The woodwork (stairs and skirting) are painted Farrow & Ball “Off-White”, and the walls are a light sandy colour called ‘String’ again by Farrow & Ball. I don’t actually have a ‘white wall’ in the house to use for this, and my wife won’t have one!

Yes, this really is the beam, not a mistake. There is a small bright spot with all 500lm (422lm measured) in it.

Batteries and output:

The runs on the included 5000mAh 21700 cell.

Please note, all quoted lumen figures are from a DIY integrating sphere, and according to ANSI standards. Although every effort is made to give as accurate a result as possible, they should be taken as an estimate only. The results can be used to compare outputs in this review and others I have published.

Peak Beam intensity measured 469000lx @1m giving a beam range of 1370m!!!

In this gallery are measurements of the built-in USB-C charging for the 5000mAh cell, and the runtime graph (with active cooling).

Troubleshooting

This section is included to mention any minor niggles I come across during testing, in case the information helps anyone else.

It was noted that when the low battery warning is shown with the flashing indicator in the side switch, this makes the main beam output flicker. More on this is included in the ‘in use’ section below.

As per the description of this section, this information is provided in case anyone else finds a similar ‘issue’ that might be fixed in the same way.

The TK30 in use
Let’s first just get the minor quibble out of the way with the output that starts to flicker when the low battery warning comes on. It is shown in the marked copy of the runtime graph and only affects the very last part of the run. I personally take this as a point of the output being so near the end and not able to maintain the full output, that I would want to recharge the battery anyway at this point.

In some ways, the visible beam flickering is only further indication the battery is too low, so is not a problem so much as a ‘feature’. Moving on…

So the operation of the TK30 is just fine, a tail-switch, and a side switch for the mode. Easy and straightforward to use.

Although the high beam output is only in the region of 500lm, I would say that the heat generated and felt at the head of the TK30 is more than I would expect for a 500lm light. But this is no ordinary 500lm light. Inside the head is a UV Laser module that is then illuminating a phosphor surface to produce the beam, so overall it is not as efficient as a typical LED emitter and so generates more heat.

Swapping from the included 21700 cell to an 18650 (with adapter), the runtime is much less, and the lower efficiency of LEP to LED becomes even more obvious. A trade off in efficiency in exchange for a beam unlike any other.

Just take a look through this gallery. (I have used the Moon to cheat with a couple of these, it’s not quite that amazing.)

Review Summary
The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Not really a ‘con’, but a warning – this is a specialist light and is not suitable for general use due to the tiny hotspot and no spill.
Shorter runtime compared to an LED light.

_______________________________________________
Things I like
_______________________________________________
Super focused beam with 1370m throw!
LEP – Laser Excited Phosphor.
USB-C rechargeable 21700 cell and cable included.
Very good belt holster.
It’s just superb fun to have a lightsaber / white laser.

 
Discussing the Review:
The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.

As well as the Tactical Reviews Facebook Page, please consider visiting one of the following to start/join in any discussion.

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Gear Review: Wiley X Captivate Lenses (Models shown – Contend, Peak and Breach)

20 September, 2020

In this review, it’s all about a lens; a new Wiley X lens. As someone who relies daily on the best quality sunglasses, but that also needs EN. 166 & ANSI Z87.1 safety standards, Wiley X has been my go-to brand and has never let me down. I also, in most cases, prefer polarized lenses for glare reduction and enhancing colour depth. Wiley X have now produced a further enhancement to the polarized lens by increasing colour contrast with the CAPTIVATE lens. In this review the focus is primarily on this new lens itself, but can be seen in three of the first models to feature the lens; Contend, Peak and Breach (which also has the gasket technology).

What’s in the box?:


Here is what is included for all three models.

A look round the Contend:
This ‘Contend’ has the Blue mirror version of the CAPTIVATE lens.

A look round the Peak:
For the ‘Peak’ it is the Copper CAPTIVATE lens.

A look round the Breach:
Lastly the ‘Breach’ has the Bronze Mirror CAPTIVATE lens. Also look out for the gasket, and in this model, the side vents that can be opened and closed as required.

What is the CAPTIVATE lens like to use?

First impressions? That is actually very difficult to describe when you go from one of Wiley X’s already superb polarized lenses to the new enhanced CAPTIVATE polarized lens. Between one Wiley X polarized lens and the CAPTIVATE lens, is there a marked difference? It is simply not possible for there to be a massive difference. Instead it has taken a longer period of use to really appreciate the improvement, as I have now experienced a wide range or lighting conditions and locations with differing colour ranges.

None of the lens versions on test are completely neutral, so all give a slight colour cast to the overall rendition of what you see. This is one aspect of the eyewear we choose that adds an extra dimension and allows us to see more and differently than without any lens.

Since getting to know the new CAPTIVATE lens, I’ve been trying to work out how to best show what this lens does, and am still no satisfied, but here goes with my attempt.

Bear in mind, that like all of our senses, we have our own built in ‘automatic balance’, so like a camera has a White Balance setting, and this can be set to Auto White Balance, our eyes also do this to some degree, and after wearing a lens for a period of time our eyes adjust to them.

Coming from daily use of Wiley X lenses already, first impressions were of an excellent lens, but could I see what made them different? Over time, and with swapping back to the standard polarized lens, the answer was yes. What I was seeing through the CAPTIVATE lens was clearer and more defined. It was subtle, but the impression was of sharper edges, and a higher clarity. As we are seeing objects which don’t typically have a ‘border’ or ‘outline’ in a different colour, we are seeing the edge of an object as its colour meets the next background or object colour.

The intent of the CAPTIVATE lens is for it to reduce light in the parts of the light spectrum where Blue merges with Green, and where Green merges with Red so that you see a more significant difference between blue/green and green/red boundaries.

This is not done to such an extent that you can’t see certain shades, but so that you have an impression of higher contrast between colours. As I said before, this is not so marked you put them on and see something so unreal, but rather that with more use you can appreciate how clearly you are seeing your surroundings.

In an attempt to show the effect of these lenses, I am including two galleries with photographs taken through the different lenses. In the first set, the camera is set to a fixed Daylight White Balance (so is not adjusting the colour balance), and in the second set the camera is set to Auto White Balance to try to introduce some of the acclimatisation our eyes have.

There is a control shot first with no lens in front of the camera, then the three different models.

Daylight White Balance set

Auto White Balance set
This is the set I feel, more closely represents what your eyes see (but not exactly) for each lens type. The stand-out photo is probably the one of the metal cover in a pavement which has weeds growing round it and when you go from the control shot to the Contend lens. The green really stands out.
Another characteristic I like about the Bronze Mirror lens in the Breach was how it gave a pleasing deep bronze cast to the rusted metal surfaces in road furniture (manhole covers etc).

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

I’m trying something slightly different and starting with what doesn’t work so well, so I can finish on a more positive note

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Sorry, not being biased, but really nothing.

_______________________________________________
Things I like
_______________________________________________
Lens quality.
The clarity of vision.
Subtle effect of the enhanced colour contrast.
Strong and comfortable frames.
More innovation from Wiley X.

Light Review: Nextorch T53 Hunting Kit

29 March, 2020

NEXTORCH have been working on LED swapping lights for some time, lights that maintain full beam quality; the Dual-Light models were the first of these that I used (like the P5G, P5R etc.). This Light Review is for the T53 hunting light set, that not only has a LED swapping triple colour output mechanism, but also a mount and remote switch.
The crucial difference with NEXTORCH’s lights and their LED swapping mechanism being there is no compromise of the reflector or beam. Typically, multiple LED light have the LEDs set into fixed, off-centre, positions in the reflector, compromising the beam. Instead the T53’s chosen LED sits at the reflector’s focal point, and is completely swapped for another LED positioned exactly at the reflector’s focal point… keep reading for all the details.

What is in the box?:

A first look at what the T53 set includes, which is all well presented in the box. Everything you need to use it is included.

A good look round the T53 Set – Things to look out for here are:

The images take you through the major components and the details of each of these. Starting with the clamp-mount to hold the T53 in various positions on the gun of your choice. It uses a cam-lever to lock into place. The mount also has a couple of small rail mount section so you can add extra accessories. A nice remote switch has both latching and momentary buttons on it, plus hook/loop straps for fitting to the gun.
There is a small socket in the tail of the T53 which takes either the charging cable or remote switch. With the appropriate plug in place, it can be rotated to lock it in the socket.

Taking a more detailed look at the LED switching:

This is the magic of the T53 (and other NEXTORCH LED swapping lights). The LED at the focal point of the reflector can be completely swapped for another by rotating the dial on the side of the light’s head.

The beam

Please be careful not to judge tint based on images you see on a computer screen. Unless properly calibrated, the screen itself will change the perceived tint.

The indoor beamshot is intended to give an idea of the beam shape/quality rather than tint. All beamshots are taken using daylight white balance. The woodwork (stairs and skirting) are painted Farrow & Ball “Off-White”, and the walls are a light sandy colour called ‘String’ again by Farrow & Ball. I don’t actually have a ‘white wall’ in the house to use for this, and my wife won’t have one!

In this gallery all exposure settings for the set of indoor or outdoor shots are the same.

Batteries and output:

The T53 runs on a supplied 2600mAh 18650 cell.

To measure actual output, I built an integrating sphere. See here for more detail. The sensor registers visible light only (so Infra-Red and Ultra-Violet will not be measured).

Please note, all quoted lumen figures are from a DIY integrating sphere, and according to ANSI standards. Although every effort is made to give as accurate a result as possible, they should be taken as an estimate only. The results can be used to compare outputs in this review and others I have published.

There is parasitic drain – this is included in the table of measurements.

Included in the gallery are the USB charging trace, a table of measured results, and the runtime trace for maximum white output (plus zoomed-in graph for the start).

The T53 Set in use

Let’s start with the T53 on its own. NEXTORCH lights always have a nice solid feel, and the T53 is built a little bigger to accommodate the LED swapping mechanism. Just as a single 18650 powered light, it is a little chunky and heavier than if it were only a single LED light. The tail-switch is not what I would term ‘tactical’ as it does not stand proud, making it a struggle to press far enough in to latch on if wearing gloves. This is not an issue at all in normal use, and certainly not a factor when moving to the remote switch.

Charging can be carried out internally using the supplied cable, and when doing so, in this example charged to a healthy 4.18V. Although not quite to 100% capacity, I much prefer this slight lower than 4.20V level as it is better for the life of the cell.

Before moving onto the gun mounting, a quick note on the tail-switch. This functions the same whether the remote switch is connected or not, in fact the two switches overlay their functions.
The tail-switch, if half-pressed, first turns on on high. If double-tapped you get strobe. However if you fully press to click it on, a subsequent half-press changes to low output.
The remote-switch, has a latching switch and a momentary switch. Either switch only gives access to high however many times you tap, you only get high.
Now, for example, if you had the tail-switch strobing, and then use the remote switch it changes to high, and once you turn the remote switch off it goes back to strobe. This is how they overlap each other.

In the next gallery the T53 is mounted onto a Chiappa Little Badger. More often than not, lights like the T53 are described as scope mounted. This is a personal bugbear as I dislike the way the spill light illuminates the gun and this creates a gap in the beam. So I will always, if possible, mount the light to the front of the gun to ensure none of the beam hits the gun. Here I’ve been able to fit the mount to the SAK sound moderator – it fitted, but was getting near the limit.

When fitting the mount, the design makes it very quick and simple to secure. The main adjustment is with the central screw and once snug, locking down the cam latch clamps it nice and tight.

Thanks to the hook/loop straps the remote switch fitted on easily, but larger stocks might prove too large for the straps.

The galley includes actual through-scope views.

For hunting use, I never looked back once I started using coloured lights, the difference is literally like night and day. There is also a massive difference between filters fitted to white lights, and pure colour LEDs, both in quality and brightness. I have no need to change colours on one outing as the gun is chosen for the quarry, and the colour to match the quarry. In theory I then don’t need the ability to change colour in one light. That said, it means the one light is suitable for all setups, and you won’t bring the wrong one.

Target illumination is very good with all colours, and something I found very useful was the ability to set the low output with the tail-switch and ramp it up to high as needed with the remote switch, then back to low again.

This is a very accomplished package from NEXTORCH.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

I’m trying something slightly different and starting with what doesn’t work so well, so I can finish on a more positive note

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Tail-switch a little too recessed.
Remote switch straps may be too short for some guns.

_______________________________________________
Things I like
_______________________________________________
LED ‘swapping’ mechanism.
Three colour output, Red, Green and White.
Perfect beam for all colours.
Bright ‘through-scope’ view.
Built in USB charging (needing supplied cable).
Remote switch has momentary and latching switches.
Mount clamp is very secure.
Full kit provided, nothing else required (apart from a gun).

 

Discussing the Review:

The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.

Knife Review: Oberland Arms Wuiderer Sepp

18 January, 2020

This review of the Oberland Arms Wuiderer Sepp knife is a natural follow-on from the previously published review of the Oberland Arms Jager Sepp knife, with both being designed by Tommaso Rumici to specifically meet requirements Matthias Hainich (Executive Director of OA) had for the knives. Though initially the Wuiderer Sepp was not the one I would have picked up first, its capabilities and versatility has made it my favourite little-big-knife.

A few more details:

What’s in the box?:

Actually this section is incorrectly named for the Oberland Arms knives, as they don’t have a box, but come in a zip-lock plastic bag; more like bulk supply standard issue kit than a retail product.

A good look round the Wuiderer Sepp’s Sheath – Things to look out for here are:

An interesting Kydex liner/fabric outer combination allowing for secure knife retention without additional straps, and the user can choose right or left handed configuration. The MOLLE strap fixture is unlike any other I have seen, only using a fabric tab to secure the strap.

A good look round the Wuiderer Sepp – Things to look out for here are:

This knife has inspired me to class it as a little-big-knife – the power and presence of a Big knife, but actually it is not that big. Come back to this gallery after reading the design insights in the ‘Explained by the Maker’ section.

Explained by the Maker:

The reasons for certain design choices may not be clear when simply looking at an object, so this section is intended to give an insight into the thinking behind a design by speaking to the designer themselves.

Tommaso Rumici has been kind enough to talk to me about this knife and the design process. This is part two of an interview first published in the review of the Oberland Arms Jager Sepp knife:

Still on the steel, are there any other factors or special processing/heat treatments to support the choice of D2 over other steels?

“In the past years, Viper has acquired a big know how about D2 heat treating. They usually do vacuum treatment, double tempering, and a final cryogenic phase. I can’t go more in details, but the final result is really interesting, on the field.
After 14 years in the knife industry, I’m convinced that a correct heat treatment is far more important than the alloy itself (obviously if we choose among good ones).
During my continuous studies and tests, several times I compared the same steel, treated by different manufacturers, with opposite results: one worked well, another seemed not even the same steel.”

Were the 3D milled handle scales something you had included in a design before? How was it working with this type of production? Did you do the 3D modelling?

“I wanted these knives to have a family feeling with the Oberland rifles, so I inspired to the texture applied to their AR15 handguards and magazines. In the past, David and Golia had milled scales, but this texture was developed for this project only.
The 3D was made directly by Viper. I usually prefer to do so, because every manufacturer uses different software and knows his machines, so the final result is far better.”

Can you talk me through the factors affecting the length and thickness of the blade, the choice of grind, the positioning of jimping, the sharpening choil and any other details you are particularly pleased with or think are absolutely essential?

“When I started working with Matthias, he was really clear about one point: his knives, like his rifles, are made for real operators, non for the tacticool audience, so he asked for performances above all. So we choose grind and thickness to achieve toughness and cutting ability.
The length of the blade, on the short one, follows German regulations. If I remember correctly blades under 12 cm are easier to carry, and they are enough for the fighter-utility role. The other one in an heavy camp knife, so the blade had to be bigger and longer.
The blade design was quite easy compared to the handle. Mr. Hainich asked for something extremely comfortable, with enough grip to work in every environment, and big enough to be used with every kind of military glove. that’s why this handle is so big, compared to civilian knives.”

How did the prototyping go (how many versions)?

“I always try to reach final design before the prototyping phase, and so we did during this project. After Viper made the first prototypes, Oberland checked and tested them, and needed only minimal modifications before the production.”

Thanks go to Tommaso for taking the time to share this.

The Blade and Handle – Detailed Measurements:

For full details of the tests and measurements carried out and an explanation of the results, see the page – Knife Technical Testing – How It’s Done.

The blade is made from D2 steel.

What is it like to use?

Again and again, due to its capabilities, the Wuiderer Sepp gives me the sense it is a much larger knife than it actually is. It is not a small knife, but neither is it a big camp blade, yet it has plenty of chopping/cutting power.
Viewed next to the Jager Sepp, which is a typical size for general purpose utility fixed blade, the Wuiderer Sepp is not that much larger, but has a wider blade and a more weight-forward configuration. By having the full-flat-grind blade, you gain significant slicing ability, helping it to slice as well as a much smaller blade would.

While writing this review my wife passed me a box of frutta di marzapane that needed opening. With the laptop on my lap, the knife I had to hand was the Wuiderer Sepp, so I popped it out of the sheath and my wife exclaimed, “What is that?! Where did that axe come from?!” as she hadn’t noticed the sheathed blade sitting next to me.

The reason for sharing this is that the Wuiderer Sepp is relatively unobtrusive, especially in the sheath. The wide blade definitely gives it more presence, as proven by my wife’s reaction to its appearance, but overall it is nothing like the size of many ‘camp’ style blades.

On the subject of the sheath, this is the only area I’m not so sure about, and only really due to the MOLLE straps. With only the fabric tabs posted through a slot in the strap to retain/hold the end, this does not provide much strength. Fully woven into the full set of PALS webbing, the loading is spread over several strips of webbing, so it should not pull on the strap fixing too much. But used as I showed in the sheath section, where the straps are used as a belt loop, this strap fixing is not very stable – ideally it should be properly fitted to webbing, or a separate belt MOLLE adapter.

Tommaso Rumici, the designer, has been impressed with the performance of Viper’s D2, achieved through their own heat treat recipe. I can only agree. The Structural Edge Testing results in the technical testing section are very impressive and equal performances from other manufacturers using M390 and PSF27, and the result is quite a bit better than Viper’s own N690 (confirming the choice of this D2/heat treat). The recovery result is also important as it shows that the edge stability has not been achieved at the cost of creating brittleness – the edge is rolling rather than chipping and can be stropped back. I have used the Wuiderer Sepp for very heavy chopping, carving and other tasks and the edge just keeps holding. When resharpening, I took the original 46 degree factory edge down to 40 degrees, and further heavy use has not caused any damage.

Using a full flat grind turns what could have been a less useful brute of a blade, into an excellent all-rounder. I’ve used this to chop through good sized branches, all the way to the other extreme of cutting soft sponge foam rubber to size, and it worked well for all jobs.

With its purposeful geometry the Wuiderer Sepp cuts above its weight with a big-knife feel for those heavier jobs. I’ve used the term earlier in the review, which comes from the fact it can cut like a BIG knife, without being big, so somehow ‘little-big-knife’ just seems appropriate; it makes me question the need for anything larger (or smaller).

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond a cutting tool or field/hunting knife.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

I’m trying something slightly different and starting with what doesn’t work so well, so I can finish on a more positive note

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Concerned that the sheath MOLLE strap fixing (fabric tab) is not stable enough.
No specific belt carry option provided.
D2 is only a semi-stainless steel.

_______________________________________________
Things I like
_______________________________________________
Cuts well above its weight – a real ‘little-big-knife’.
Very comfortable hand-filling handle.
Very good blade indexing due to handle design.
Excellent edge retention and edge stability.
Sheath can easily be switched between right and left-handed.
Good at finer cutting tasks as well as chopping.
Stable sheath retention that will hold in tip-up carry.
Fantastic all-rounder.

 

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CandlePowerForums – Knife Reviews Section (Largest and Friendliest Flashlight Community Forum)

The BESS Exchange – A forum discussing technical aspects of sharpness and truly understanding your sharpening process.

Gear Review: Wiley X Mega-Review! – Detection, Aspect and Vallus.

3 January, 2020

In this Wiley X Mega Review, I’m testing three recent models, the Detection, Aspect and Vallus. Each of these provide different looks, fit, features and lens specifications, giving this group a nice balanced mix. Since first finding Wiley X many years ago, I’ve not looked back when it comes to eye protection, lens quality, fit and style.

A little more Background:

In this group we have a flagship model, the Detection, with its set of five lenses to suit all lighting conditions without any reduction in eye protection. Frameless and with large wrap-around lenses the Detection is intended to provide maximum visibility and coverage ideal for, but not limited to, shooting.
Adding in the Aspect with emerald polarized lenses fills in more of the Wiley X offering, and the Vallus taking a third spot in this line-up rounds off a nicely balanced group.
Another crucial factor in the selection are those models in a size suited to my face. Wiley X offer a wide range of sizing options with the specifications clearly shown so you can find the right fit for you – another reason I find Wiley X difficult to beat.

The Detection:

What’s in the box?:

A good look round the Detection – Things to look out for here are:

Starting this gallery is a quick spin round the front, side and rear views, before moving onto the smaller details. Unlike most lens swapping glasses, the Detection lenses keep their nosepieces.

Lens swap on the Detection:

Most lens swapping designs have a moment of ‘should I be pulling/pushing that hard?’, but not with the Detection’s arm lock making swapping easier than any other I’ve used to date.

The Aspect:

What’s in the box?:

A good look round the Aspect – Things to look out for here are:

Starting this gallery is a quick spin round the front, side and rear views, before moving onto the smaller details. The Aspect has sprung hinges that allow the arms to both open up wider than the normal open position, to conform to larger heads, and also protect the hinges from over extension. This pair of Aspect glasses has the Emerald, polarized lenses for all the bells and whistles.

The Vallus:

What’s in the box?:

A good look round the Vallus – Things to look out for here are:

Starting this gallery is a quick spin round the front, side and rear views, before moving onto the smaller details. The Vallus is the most conventional in terms of ‘features’, but keeps thing simple and solid.

Technical Testing:

With a wide range of lenses, one of the specifications that is important to me is the light transmission. (I also have a hyper-sensitivity to light) using a fixed and stable light source and a lux meter, the transmission was measured to compare it to the Wiley X specifications. The results are shown as comments in the raw photos included in this gallery.

What it is like to use?

Truly an EDC for me, the time so far (as it does not end with this review) has given me some interesting material for three specific sections.

Protection test:

I couldn’t quite bring myself to shoot the brand new Wiley X models, but had an old pair of Wiley X made 5.11 Cavu glasses which were past their best. Testing these three new models inspired me to take the older Wiley X lenses out for a shootout!
Needing to choose silenced guns, I had a .410 shotgun, using .410 Long plus the Chiappa Little Badger in .22LR using subsonic hollow-point. Clearly the impact energy of the projectiles is quite different, but gives a stepping up of hitting power.

For the test, the glasses were held loosely and shot from around 15m. In both cases the lenses did come out of the frames, but had they been on a face, they would have been supported. The .410 was stopped by the lenses, but the .22 was not – still a very impressive result for a direct shot.

Wiley X saved me from serious eye injury:

It only has to happen once, so never let your guard down. Never, never go without eye protection even for seemingly safe jobs – the Wiley X Vallus has saved me from serious eye injury.

Despite spending plenty of time on ranges and using power tools and machinery, I have actually never had anything significant hit my eye protection. The mark on the lens shown in the gallery came from the freshly cut end of some coiled steel fencing wire that slipped from my grip and sprung straight into my face, with force, literally scoring a bullseye. Were it not for the Wiley X Vallus lens, I’d have been pulling out this wire from deep inside my eye; it all happened so quickly.

Initially I was annoying that it happened with a two week old pair of glasses, but I’d rather that than the alternative. I’m always super paranoid about eye protection, and in this case I have no doubt it would have been very bad, so am extremely glad it was Wiley X I was wearing.

Every day with Wiley X:

Readers who know me might remember I have a condition giving me hyper-sensitivity to light, and that this means I wear sunglasses every day at all times I am outside during daylight hours, and frequently indoors as well.

So when I say I have lived with these sunglasses from Wiley X, I have lived with them and worn them for hours and hours every day for months.

Detection – For shooting or any action sport, the Detection is superb. Its large wrap-around frameless lenses give you uninterrupted vision covering all your peripheral vision as well (good for picking up moving objects). The level of cover also ensures the highest level of protection from flying fragments.

Aspect – With glare being one of the worst things for my light sensitivity, polarized lenses are a real eye-saver. Generally I prefer the neutral type of lens (smoke/grey) so the Emerald is not something I might have jumped at, but if I allow myself to consider looks, well, these got more compliments than any eyewear I’ve worn before.

Aspect – The sprung arms on the Aspect afford it a level of comfort and ease of putting them on, but there is a small ‘feature’ which becomes more obvious over time. When you put them on, compared to arms without the sprung hinges, the Aspect will stay where it was when you let go. So if it is slightly crooked, the arms are not strong enough to straighten them on your face. You do need to ensure you put them straight. If you are popping them on and off quite a bit, this becomes more noticeable, where the standard hinge glasses, just snap into place, these don’t. A trade-off for the comfort.

Vallus – I’d not normally go for the non-polarized lens for my main eyewear, but the Vallus has claimed its spot thanks to the great comfort and excellent side protection due to the wide arms. The neutral colour lens works well, and not being polarized also means there are absolutely no ‘screen viewing issues’ which are a common hazard of the polarized lens.

Vallus – As described earlier, the Vallus has also actually saved the sight in my right eye, so I do have an even greater affection for them.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

I’m trying something slightly different and starting with what doesn’t work so well, so I can finish on a more positive note

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Detection – lens holder in case can leave a mark on the lens which can be cleaned off. (Wiley X are already fixing this)
Aspect – Arm sprung hinge prevents the glasses auto-centring on your face.

_______________________________________________
Things I like
_______________________________________________
Detection – full coverage without the loss of any peripheral vision.
Detection – super easy lens swapping.
Detection – lenses to suit all lighting conditions.
Aspect – great comfort due to sprung arm hinges.
Aspect – fantastic Emerald polarized lens.
Vallus – light and comfortable.
Vallus – good side protection from wide arms.

 

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Gear Review: MantisX Shooting Analysis / Training

17 November, 2019

From the moment I saw it, I knew that in the MantisX, Mantis had created a product that every shooter can benefit from, beginner or competition winner. The MantisX gives you information you just can’t get in any other way, and it tells you exactly what is going on in that critical split second before each shot, in dry-fire or live-fire training. This review of the MantisX shooting analysis system will show how this can help you improve your trigger control and grip through the shot.

A few more details:

What’s in the box?:

Very well presented, the MantisX comes inside a zip up case.

A good look round the MantisX – Things to look out for here are:

Actually as far as a product goes, the MantisX unit itself doesn’t have much to look at. It is basically a small black box with built in rail mount, a power button a few lights and a USB charging socket. For this review ‘A good look round’ is one of the smaller sections; here it is.

Getting Started:

We have seen the small MantisX unit, and this is only part of the story, as it is essentially just a sensor. It is the output of that sensor and how it is interpreted that is what matters.

Getting started with the MantisX means first installing either the Android or iPhone app from Mantis and the pairing the MantisX unit via bluetooth with your device (phone or tablet).

Of course you need to be fully familiar with your training gun, be it a firearm, airgun, or airsoft gun and its dry-firing setup. The MantisX can be used in dry-fire practice or live-fire practice.

With the MantisX mounted, and paired to the app, you can get started and this involves an initial benchmark (you will want to see where you are, and what improvement you achieve, so don’t miss this out). There are also some settings you might want or need to adjust depending on the gun and dry/live-fire training.

What it is like to use?

And diving into using it. I’ll share something I came across very early on which Mantis support helped me with, and it makes the crucial difference in dry-fire training.

When I was cocking the hammer on my training pistol between shots, it kept picking up this as a really bad shot. I did try deleting these afterwards, but my results were horribly skewed.

My preference for training is dry-fire with manual hammer/trigger reset. If live-fire training with a semi-auto, or using a gas powered airsoft semi-auto, there is no issue, the shot cycle resets the hammer and you don’t have this issue.

Such a simple answer! If the MantisX is held sideways, or if the gun it pointed up or down, the mini shocks it uses to detect a hammer falling are completely ignored, so when cocking the hammer in manual dry-fire, tilt the gun sideways or up/down and you can reset the hammer without a misdetection.

Nothing in the instructions at the time told me this, and when I’d seen it being demonstrated, it was with gas operated semi-auto airsoft guns.

The app has an introductory course to get you started, and then you can move onto the basic marksmanship course. You can go through this basic course entirely dry-fire. The course is split up into a number of challenges so you can work your way up.

It is important to note that the more advanced courses require live-fire, or simulated live-fire, to progress, so once through the basic course it will get noisier.

There is nothing to stop you practicing the basic skills over and over if you want to continue with dry-fire practice.

You don’t just get a score for each shot, the app understands the types of mistakes a shooter can make and based on your results suggests what you might be doing wrong. Something that wasn’t really possible without real lead-slinging before, and even if you did manage to pull the shots back onto target with a nice combination of mistakes, there is no fooling the MantisX.

In the analysis of each shot and your shot history, you get statistics galore, and a load of hugely valuable information you can use to work on your weaknesses.
I particularly like the individual shot analysis where you can see the actual movement of the gun in the split second before the hammer falls to see if you are jerking the trigger, pushing/pulling, changing your grip, or any other problem, or if you settle and break the trigger cleanly.

As you start to tune in to the better results and what made the shot good, you can connect the ‘feel’ of the shot, and the quality of the actual shot. Certainly in all forms of shooting I participate in, be it pellet, shot, arrow, bolt or bullet, there is always a great feel with a great shot; MantisX quantifies that, and also tells you what went wrong when it wasn’t good.

Something to remember is that the shot placement shown by this system is ‘virtual’ and based solely on the quality of the trigger pull and grip, NOT on actual alignment. In reality the strain on ensuring correct sight alignment often introduces issues in the grip or trigger control, so scoring perfectly with the MantisX is not a guarantee you will actually group well.

Having said that, the MantisX is giving you incredible information you could never otherwise see, so coupled with live-fire targets, you can see if that flier was down to your technique or something else.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
Things I like
_______________________________________________
Compatible with almost any gun with a hammer strike.
Captures detailed information on each shot.
Analysis of shooting performance.
Historical data stored showing progress.
Android and iPhone apps.
Live or dry-fire shot analysis.
Advice and hints based on your actual shot data.
Mount adapters available for non rail equipped guns.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
Some courses can’t be completed in dry-fire only.
Difficult to fully remove incorrectly captured ‘shots’ from the history.
The system captures ‘virtual’ shot placement so can be fooled.

 

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Gear (Gun) Review: Chiappa Little Badger Pt.2 – Fully Loaded!

2 November, 2019

‘Fully Loaded’ – This is the second part of the Chiappa Firearms Little Badger Folding Survival Rifle Review, and follows on from Part 1 which introduced this handy little gun. In Part 2 I’ll be covering more details of the Little Badger accessories, how they fit and perform, and a nice modification that, for me, transformed this rifle.

The accessories in detail:

Keep an eye out for the comments on each image. Some of the key points to look out for are:

The effect add-on handles have on folding the rifle, and how easy they are to fit and remove.
A compact scope (from In Your Sights) really does make all the difference in sighting.
Subsonic .22LR plus a moderator really makes for a great combination.
The hammer extension, which seems such a great idea to improve ease of cocking the hammer, might not work as well as hoped.

This gallery will show how they all fit together.

Bringing it all together:

So far the photos have been from an initial studio shoot, but now we are moving onto areas which are being re-visited based on using the Little Badger, plus a game changing modification of one of the accessories.

That modification is of the pistol grip – check the gallery for more.

What it is like to use?

Taking the fully loaded (in terms of accessories) Little Badger for a few range sessions resulted in some unexpected troubleshooting (pun intended)!

Knowing how different guns seem to prefer different ammunition, sometimes not the ‘best’ quality ammo, I went with a selection of usually reliable options.

A Slight Issue – easily resolved:

Comfort and stability were all good, but I found myself struggling to get my test groups shot, as there were SO many misfires. Change ammunition, try again, check the firing pin and hammer, try again.

Normally after waiting for a potential hang-fire, I rotate a misfired round so the firing pin can strike a fresh part of the rim. In some cases I did this six times. With the external hammer, I could of course simply re-cock it and go again without opening the action. This turned out to be the way to get a reliable ignition on all misfires.

This second strike also led me to the misfire being due to a light-strike. Why though? After considering all the options it seemed that possibly the extra weight of the hammer extension might be slowing the hammer speed and reducing the inertia of the hammer striking the pin. OFF with that extension and ON with the shooting. Every strike was now a reliable ignition. A pity, but at least the Little Badger was not at fault.

Range:

With the open sights and their limited adjustment, the accuracy was limited too. It felt that the 25yd range would be the most I would take on a live target. With the (max 4x magnification) scope fitted, 50yd would be a comfortable rabbit range, but with the results of the paper target grouping, I would not be happy extending this out to 100yds.

Trigger pull was very good considering the price of this gun. Not quite a glass rod breaking, but smooth, consistent and a good weight. Taking an average and carefully measuring using a force gauge and custom trigger hook, this trigger is breaking at 2.3 lb.

One of the complete joys with this rifle is how easy it is to carry. There are definitely days when I’m not really on serious vermin duty, so might not want to bother taking my usual semi-auto, but the Little Badger comes along without any stress.

Using this excellent little gun also proved to me that if that ‘prepping’ type scenario were to come about, this is the gun I would grab. It is not weighing me down much and the ammo goes a long way. Easy to carry, compact, simple and reliable (without that hammer extension).

The Transformative Modification:

Of the two options, the serious pistol grip is actually a grip made for the Chiappa MFour Semi-Auto rifle. This is the reason it gets in the way of the folding action, it was not actually designed for the Little Badger, but is simply a tried and tested grip that certainly improves the handling.
Making this existing MFour part into a grip specifically designed for use with the Little Badger and allows the full folding action is that transformative modification.
By cutting a slot into the pistol grip I have allowed the rifle to still fold fully. WHAT a DIFFERENCE that pistol grip makes to the handling of the gun. It adds so much stability and control over the bare rifle I would not think twice about having it fitted. If you can make the same modification I highly recommend doing it.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
Things I like
_______________________________________________
Super folding action.
Very compact.
Plenty of rails to add extras on.
Light weight.
Simple, reliable mechanism.
Good trigger pull.
Everyone on the range loved this.

_______________________________________________
What doesn’t work so well for me
_______________________________________________
The hammer extension causes light-strikes.
The two pistol grip options interfere with the folding.
Plastic ejector – I’d prefer this to be metal.

 

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Gear/Gun Review: Chiappa Little Badger Pt.1 – Folding Survival Rifle

10 September, 2019

This is Part One of a two part review featuring the Chiappa Firearms Little Badger folding survival rifle. Ever since I first saw this rifle, it’s been in my sights for an in-depth test and review. The Little Badger has a charm and practicality in its simplicity and easy of carry, and I can’t help but be reminded of the classic 1973 film ‘The Day of the Jackal’.
In this, Part One, of the review we start with a good look round the Little Badger, then onto the official accessories from Chiappa, and finally a cracking little 1-4×20 scope from In Your Sights, that has been a great match for this excellent super-light rifle.

The details:

First view:

The folding rifle as it arrives.

A good look round the Little Badger – Things to look out for here are:

Taking in all the details and options for add-ons. Moderator threading, open sights, rails, action and initial adjustments.

Little Badger Accessories:

Chiappa offer several accessories for the Little Badger including a cleaning kit handle, hammer extension and pistol grip.

A suitable scope – In Your Sights ATOM 1-4×20:

Being a small and light rifle, it needed a suitable compact scope, and in my search for an ideal match I came across the IYS (In Your Sights) ATOM 1-4×20 compact zoom rifle scope. This gallery gives you a good look round, and through, the scope.

And there is more in Pt 2:

It’s not over yet! There has just been too much to look at all in one go.
Please see ‘Fully Loaded!’, Part 2 of this review for, Modifications, What it is like to use?, Test Results and the Review Summary.

 

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Knife Review: Oberland Arms Jager Sepp

17 June, 2019

Finding Oberland Arms’ knives was an outstanding highlight of IWA 2018, and it became a mission of mine to review them. A happy coincidence that one other IWA 2018 highlight happened to be another knife designed by Tommaso Rumici who is the designer of the Jager Sepp on review here.
Everything came together nicely at IWA 2019, meetings with Tommaso, Viper Tecnocut and Matthias Hainich of Oberland Arms, and here is the first of two reviews for Oberland Arms knives (the Wuiderer Sepp is currently in testing).

A few more details:

No unnecessary frills with packaging that will just be discarded, the Jager Sepp and Wuiderer Sepp arrive in a plastic bag.

Starting with the sheath:

This is the one part not designed by Tommaso Rumici, but instead by the team at Oberland Arms. It has a lot of interesting features shown in the gallery.

A good look round the Jager Sepp – Things to look out for here are:

Overall there is a real sense of purpose and lack of unnecessary frills on the Jager Sepp.

Explained by the Maker:

The reasons for certain design choices may not be clear when simply looking at an object, so this section is intended to give an insight into the thinking behind a design by speaking to the designer themselves.

Tommaso Rumici has been kind enough to talk to me about this knife and the design process. I am also reviewing the larger Oberland Arms ‘Wuiderer Sepp’. The interview with Tommaso is in two parts, with this review containing Part 1:

This image of the first sketch of the final design of the Jager Sepp has been kindly provided to me by Tommaso Rumici.

How did you get involved with Oberland Arms to design these knives?

“Me and Matthias Hainich, CEO of Oberland Arms, met during an IWA Show. I was helping at Viper’s booth, and he was looking for someone to produce knives for his brand. At the beginning, we started with a lightly modified version of the Viper David, then we continued with exclusive designs, made for Oberland following his specifications and requests.”

Can you talk me through the design brief, and how far developed it was when given to you?
“During September 2016, Mr. Hainich sent me a list of specifications for the new knife, with some indications about the tasks it would have been able to accomplish, and a few examples of existing knives with the same characteristics.
The new knife was going to be a fixed blade, with green or coyote G10 handle, 11,9cm blade with 5mm thickness, flat grind, with stonewashed finish, and a Kydex/Nylon sheath.
I started working, exchanging emails with Matthias, and before October we arrived to the final design of the smaller one.
Since Mr. Hainich is a fan of my Carnera, we also tried a bigger blade with a similar Bowie design (but smaller than Carnera’s one, which is too big for a military knife). This blade became the bigger one.(The Wuiderer Sepp.)

At the end, we had a meeting with Mr. Miniutti (Viper), and checked everything before production. During that meeting, we decided for the Black Stonewashed PVD, and to work on three different handles: OD green, coyote and wolf grey G10.”

There was a repeated question I got when talking to others about these knives – why D2?
AISI D2 is a good steel for hard working tools. It holds a good edge, it’s tougher than a lot of “inox”, and more stainless than high carbon steels, like 1095. It isn’t the latest alloy invented but, in my opinion, it’s a great choice for a military knife, that can be abused or lost in the field, because it gives you great performances, it’s difficult to break, while keeping a great price/performances balance.
Speaking of the real life, I tested several D2 knives made by Viper, and I’m really satisfied about how they work. Especially the Viper Tank, designed to be an heavy outdoor tool.

Part 2 of this interview will be in the Oberland Arms Wuiderer Sepp Review.

In the Lab – Technical Testing!:

Now even more detailed!

Taking things far beyond most knife specifications, in this section I will be carrying out a detailed examination of geometry, balance, edge bevels, factory sharpness and structural edge testing using the industry leading measuring tools.

These measuring tools include a Vernier protractor, callipers, fixed radius gauges, the unique Arc Master adjustable radius gauge, Edge On Up’s BESS Certified PT50A and SET tester along with CATRA’s Hobbigoni LASER Edge Protractor.
The BESS ‘C’ scale of sharpness (Brubacher Edge Sharpness Scale) will be used to verify the sharpness of the factory edge and allow the knife to be brought to a minimum standard sharpness before testing a blade’s cutting performance.

The measurements have been tabulated and are presented along with a few reference blades. The ‘Balance relative to the front of the handle’ tells you if the knife will feel front heavy, or if the weight is in your hand (a positive value means the weight is forward of the front of the handle). The ‘Balance relative to the centre of the handle’ indicates how close to a ‘neutral balance’ the knife has in the hand.

The first image in this gallery shows the standard review measurements, however, this is the first review on Tactical Reviews to feature a new measurement. Using the Edge On Up Structural Edge Tester (SET) to measure the resistance of a knife’s edge to rolling.

This is to be expanded upon in future articles, but for now, in the SET results the key factors are:
Series 1 Degradation – how much damage the edge suffers from one edge rolling cycle. The damage is represented by an increase in the BESS ‘C’ score. (Averages also shown for A and B)
Series 2 Degradation – how much damage the edge suffers from one further edge rolling cycle. (Averages also shown for A and B)
Degradation after strop – has the edge been permanently damaged/chipped or can it be recovered with stropping? A negative number means it actually improved from the starting figure, suggesting there may have already been some rolling of the edge before testing. (Averages also shown for A and B)

What it is like to use?

Of Oberland Arms’ three fixed blade knives (at the time of review), the Jager Sepp would be the all-rounder in terms of size (the main reason I’m testing it first). With a 12cm blade (just under 5″) it is in that ideal general-purpose-blade length. The high, almost full, flat grind gives the blade strength combined with powerful cutting ability.

Good handle design provides immediate indexing of the blade, comfort and grip options. On picking up the Jager Sepp, this is what strikes you straight away. It just sits in your hand, balanced nicely on your first finger, nimble and ready to work; a natural extension of your hand. The grip is a generous size without being overly large, and its size and shape have not presented me with any hotspots when working it hard. Grip indexing works almost as well in a reverse grip, considering the forward grip has that first finger groove, this is impressive.

For a working knife, three elements are as important as each other. The blade, the handle and the sheath. In some cases the sheath can become the most important element, as a knife is no good to you if it is lost, or you can’t get to it when you need to. The Oberland Arms sheath is a great mix of clever design ideas and hits a lot of sweet spots.

The nylon outer shell holds a kydex liner, meaning no additional knife retention is needed, the kydex lips hold the Jager Sepp firmly in place even when mounted handle-down. A thumb ramp is incorporated into the kydex so you can easily unsheathe the knife quietly and in full control.

Ambidextrous use is catered for in the simplest way; the kydex liner is held in the outer sheath with a single bolt. This allows you to remove the kydex liner and flip it round for left-handed use – an excellent solution. I’ll cover more on the sheath in a dedicated gallery following this one.

On its first venture into the outdoors, I went with the factory edge, but found this a little too steep an angle (52 degrees), so took this to a total inclusive of 35 degrees. I find this a good compromise when I don’t want to go all the way to 30 degrees, but want a finer edge than a typical 40 degree.

OK, perhaps the elephant in the room – D2 steel. Once the wonder steel of legend, then becoming more mainstream, before being mostly discarded in favour of steels designed specifically for the knife industry. Is it too hard to sharpen, does it chip, does it rust, does that edge last well?

The SET testing results, included for the first time ever in a knife review, have been shown in isolation, as at the time of writing this test is still not fully proven. What I can say is that the results were in line with what I expected of D2. Those figures are a strong performance and the ability to recover means that there was no chipping. I’d say the heat treat on this by Viper Tecnocut has got it just right.

D2 by its very nature is going to be a bit harder to sharpen. Although I use a belt grinder, it is easy to feel how hard the steel is to sharpen, and the Jager’s blade was firm but not excessive. The only chipping I have experienced was when I dropped the knife onto a stone!

I’ve given the blade no special treatment, but also no abuse, and I was keen to get a patina to add to the stonewashed PVD (being stonewashed a lot of the PVD has been polished off), but so far neither the bare edge bevel not any other part of the knife have shown any corrosion.

The Oberland Arms nylon sheath has MOLLE compatible straps that are unlike any others I’ve seen so warrant a more detailed look. In this gallery I’m fitting it to a drop leg platform.

Before getting onto this is does lead me to mention why I chose to fit it to a drop-leg. With MOLLE straps, I typically arrange them so as to form a belt loop for the majority of my testing. The strap fixing design on the Oberland Arms sheath is not strong enough to do this with confidence. Unlike a press-stud fixing the fabric tabs were becoming deformed when making a simple belt loop and I had to use some auxiliary MOLLE strap I have (for pouches without any straps).

Going onto PALS webbing, the strap design is perfectly strong enough, and the effect is for the cross webbing to take the load. For a full weave, you will need to remove the kydex liner. In this gallery I did not do that, so the last weave is left undone.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond a cutting tool or field/hunting knife.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

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Things I like
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Superb ergonomics / indexing / comfort.
High flat grind.
D2 with very good heat treat.
Great all-rounder size.
Versatile, ambidextrous sheath.

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What doesn’t work so well for me
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Sheath MOLLE straps – question over durability.
Sheath MOLLE straps – not strong enough for a simple belt loop configuration.
D2 – some would question using this steel in a premium knife.

 

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