Tag: design

0919161710cmod2 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…]

Aluminum cased rounds, left to right: .30 T65 Light Rifle aluminum experimental, .280/30 British aluminum experimental, 6x50mm SAW aluminum experimental, 9.53x76mm Winchester quadruple flechette, .330 Amron Aerojet triple flechette. Today, aluminum cases are only used in low pressure applications, like the Omark Industries short range training round on the far right.

Future Firearms Ammunition Technology 001: Aluminum Cased Ammunition – Lightening the Load, Pt. 1

The metallic cartridge case was invented in the 1840s, and – starting in the 1860s – its military application brought with it a host of of advantages for the soldier: Now, ammunition was self-contained, weatherproof, and durable. Yet, despite it being a [Read More…]

machinepistols

Cracking the Machine Pistol’s Code: Is a Useful Fully Automatic Handgun Possible?

In a previous article on TFB, we compared a Mauser 712 Schnellfeuer to a Glock 17 with an auto sear, and along the way discussed how very limited the usefulness of the modern machine pistol is. Fully automatic pistol-sized weapons have been around for over a hundred [Read More…]

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Taking a Closer Look at the Cycle: Firing (Operating Systems 201)

In the first post of the 101 level series on firearms operating systems, we briefly described what the word cycle means in terms of the operation of automatic firearms. However, there’s a lot more to the cycle of an automatic firearm than just the completion of [Read More…]

GOvWgPM 7.62x39mm170gr

Exploring the Untapped Potential of 7.62×39 as an “All Around” Hunting Caliber

What if there was a caliber that was suitable for everything from coyote to brown bear, kicked less than your whitetail gun, fit in a micro-length (2.25″/58mm) action, and cost a quarter a round to shoot? That would be a pretty awesome caliber, wouldn’t [Read More…]

105mm_tank_gun_Rifling 1111151514badjusted This short-recoil operated SIG P220 uses a tilting-barrel locking mechanism. You can see how the slide is prevented from moving rearward by the front surface of the barrel in this image. NLmpDT6 BCs Jim Sullivan Royal_Marine_121113-M-XW818-041 barrel_beretta_photobar_1104_general HK-VP9-grip-panels-backstraps Capture Ahmad Issa 5.8x21mm concept

Concealed Pistol Concept Design

A reader emailed us about a compact firearm he has designed. I like the design. My only concern would be the choice of the Chinese 5.8x21mm round, a round not manufactured outside of China, but the idea is intriguing. The 5.8x21mm is substantially more compact [Read More…]

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