Monthly Archives: November 2019

Barnaul 30-06 Ammo Draws Questions

MKS Supply offers the answer to the mysterious cartridge groove.

   Recently we received inquiries about Barnaul’s .308 Winchester and .30-06 hunting rounds. The .30-06 is an all American round once used by U.S. Forces as a military round but no longer. It is arguably one of the most popular and effective hunting rounds worldwide.

 

Note relief ring just above cartridge base.
The “mystery” is not really a mystery at all.

 

   The pressure generated by the .30-06 round is higher than other steel cased rounds the company makes. Steel cases are cheap to produce. However, since steel is much harder and less malleable than brass the overall steel case expands slower in the microsecond of gas expansion in the firearm’s chamber than brass cases.

   Engineers at Barnaul knew that to accommodate the higher pressure curve of the .30-06 round for that millisecond they needed to accommodate these higher pressures. So, they “simply” designed a slight round groove called a relief ring into the cartridge case near the base. The groove is roll pressed in, there is NO metal removal.

   Upon firing the additional pressure will be absorbed and reduced as the relief ring material is pressed out by the powder discharge basically duplicating the expansion of a brass case. Smart, simple, safe and well-engineered.

   Barnaul produces the .30-06 using strong polycoated steel cases for reduced cost. Some folks are afraid of steel cases.  Read the article linked here at Luckygunner.com ; in a bolt gun it would never cause the problems seen in semi-auto guns.  In short, reliability is as good as with  reloads.

   Barnaul is one of very few privately owned Russian ammunition companies who have been approved to supply their ammunition to the Russian Army. Their high standards and extreme quality control measures have also granted them the privilege to supply the Russian Special Forces with Barnaul’s high-quality ammunition.  Their ammo works incredibly well at an affordable price.

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Filed under ammo, brass, reloading

GunSkins® DIY Finishing Anyone Can Do

At the ShotShow in 2019 I picked up a couple of kits form the folks at GunSkins® so I could try them. The variety of skins for different guns in different patterns was impressive all by itself. As a lifetime gunsmith with about 35 years of work under my belt, I have seen a lot of products come and go. In recent years the arrival of many new finishing products for guns has given the client/end-user a lot to choose from. Not many of them are what I would consider DIY, GunSkins truly are!

One of the kits I was given was for a standard AR-15 magazine. Naturally, I selected a patriotic, 2A pattern for my project. GunSkins AR-15 Mag Skins are designed to fit 30-round 5.56 x 45 NATO (.223 Remington) AR15/M4 compatible magazines. The kit includes pieces for the left and right side of a single magazine. I actually read the instructions just for the fun of it… Just six easy steps. It was really pretty self explanatory. A clean surface is the most important thing when doing any finish work, no exception with this product.

I really like the idea of making my magazines easy to tell apart from my shooting buddies. The vinyl provides a modicum of protection to my magazines as well.

Time invested on my first wrap was about a 1/2 hour as I was trying to learn as much as I could about how the vinyl stretches and how the heat gun affects it. I used a couple of things like a pen cap and Sharpie® pen and a cleaning brush to form the vinyl into the grooves of the magazine. Items with a sharp edge may tare the vinyl so everything I used to form was dull or rounded. Occasionally a bubble would refuse to go away, I poked a tiny hole it in with the razor to allow the air to escape. Once you get the hang of the process it would go pretty fast.

Generally speaking, vinyl wraps are less expensive than some of the other gun finishes out there. That does not mean they are cheap. GunSkins says they use the highest quality vinyl for their kits. They offer a 100% waterproof cover, durability and color. GunSkins are NOT permanent the vinyl can be removed

Magazine in place.

Here is the finished product with the magazine in the firearm.

any time you want to change the look of your firearm.

Many other gun finish options require shipping your gun away or waiting hours or days for the finished product to be usable. GunSkins are designed with the end user in mind, as a simple DIY project that can be accomplished in just a few hours. Popular names in camouflage, such as A-TACS, Kryptek, Kuiu, and more are available. Allowing you to match the GunSkins wrap to apparel and gear of the same pattern.

 

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Filed under Gunsmithing, How To, shot show