Tag: experimental

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Firearm Showcase: The Heckler & Koch SMG II, 1980s Would-Be Successor to the MP5 – HIGH RES PICS!

In May of this year, I got the rare opportunity to travel to Heckler & Koch’s headquarters in Ashburn, VA, to take a look at some of the experimental and prototype firearms they have located there in their famous “Grey Room”. It wouldn’t be worth as much for [Read More…]

Polymer-cased telescoped ammunition, left to right: .38 cal. Dardick Tround, 5.56x30 Hughes Lockless, 5.56x45 Steyr ACR flechette.

Future Firearms Ammunition Technology 008: Plastic-Cased, Telescoped Ammunition – Lightening the Load, Pt. 4

Previously, we discussed different concepts for lightening the soldier’s load, including aluminum-, composite-cased and caseless ammunition. Today we’re going to look at the weight-reducing concept that many believe is the horse to bet on when it comes to [Read More…]

Flechette rounds, left to right: XM645 with glass polyester sabot, XM645 with compressed sabot, XM110 with GP sabot, 10gr SPIW flechette and sabot above, XM144 with GP sabot, 10gr SPIW flechette above, .330 Amron Aerojet triple flechette, 9.53x76mmR Winchester quadruple flechette, AAI 5.56x45mm ACR flechette, Steyr 5.56x45mm ACR plastic cased telescoped flechette. Sabot rounds, left to right: XM645 SPIW flechette with compressed disintegrating puller sabot, XM645 SPIW flechette with glass polyester disintegrating puller sabot, 5.77/4.32 Frankford with polymer cup pusher sabot, 5.56x45mm AAI ACR flechette with petal-type puller sabot. Far right is a pulled SPIW sabot and flechette.

Future Firearms Ammunition Technology 003: Sabots – Performance-Enhancing Shoes for Your Bullets

One of the problems of small arms ammunition is that of swept volume. That is, the most ballistically efficient projectiles are the longest and thinnest ones, which cut through the air more easily than squatter, fatter projectiles. Yet, the best projectiles from a [Read More…]

The 4.85 British (center) was developed in the UK and competed in the NATO trials that eventually standardized on the Belgian 5.56mm SS109 load (left). Like the similar German 4.9x45mm DAG (right), it is based on the 5.56mm case. The 5.56mm alongside two of its .17 caliber variants. Center, the 4.32x45mm Frankford Arsenal, Right, the German 4.3x45mm DAG. zHTbnCa 0520161324c 0520161036 2Lub7BA dbZfFVC
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The AK-107 Balanced-Action Rifle In Slow Motion – Larry Vickers’ Moscow Trip

There’s very little that has truly been new in the way of firearms mechanisms in the past century. Materials and ammunition design have improved steadily, but the great bulk of firearms mechanisms in use today were designed in the early part of the 20th Century or [Read More…]

qnUIiko openboltassaultrifle1 b6372570197d darpa_exacto_projectile 2015-04-26 14_06_48-A glimpse at the Stoner 63 - YouTube
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X-Ray Photos of Exotic Ammunition

IAA Forum user PaulSmith received several x-ray images of ammunition, and was able to take photographs: Last week I was given some excellent x-rays. By having a diffuse light source behind the film I was able to take some pictures. The quality of the x-ray images are [Read More…]