This Rifle Fires Plastic Ammo; The US Army Almost Adopted it.

Published on March 24, 2024
Duration: 36:03

The RM277, a bullpup rifle developed for the NGSW program, showcases advanced polymer-cased ammunition (.277 TVCM) offering significant weight reduction and high performance. Its unique 'Short Recoil Impulse Averaging' system effectively halves felt recoil, while selectable open/closed bolt operation enhances versatility. Ballistics and barrier tests reveal impressive penetration and energy transfer.

Quick Summary

The RM277 is an experimental bullpup rifle notable for its .277 True Velocity polymer-cased ammunition, offering 30% weight reduction over brass .308. It employs a 'Short Recoil Impulse Averaging' system to halve felt recoil and features selectable open/closed bolt operation.

Chapters

  1. 00:00Introduction to the RM277 Rifle
  2. 03:37Development History & Polymer Ammo
  3. 04:56Recoil Mitigation Technology Explained
  4. 06:15Open vs. Closed Bolt Operation
  5. 08:48Recoil & Accuracy Performance Tests
  6. 14:55Ballistics & Barrier Penetration Tests
  7. 20:51Velocity & Technical Features

Frequently Asked Questions

What is the RM277 rifle and why is it significant?

The RM277 is an experimental bullpup rifle that competed in the US Army's Next Generation Squad Weapon program. It's notable for its use of advanced .277 True Velocity polymer-cased ammunition, which significantly reduces weight and enhances performance, and its innovative recoil mitigation system.

How does the RM277's ammunition differ from traditional rounds?

The RM277 uses .277 True Velocity polymer-cased ammunition, which is approximately 30% lighter than traditional brass-cased .308 rounds. This weight reduction aids logistics and soldier load, while the ammunition maintains high power and velocity.

What recoil mitigation technology does the RM277 employ?

The RM277 features a 'Short Recoil Impulse Averaging' system. This hybrid design combines elements of short recoil action and a gas system to spread the recoil impulse over a longer duration, effectively halving the felt recoil from its powerful cartridge.

Can the RM277 fire from both open and closed bolt positions?

Yes, the RM277 has a unique selectable firing mode. It can operate from an open bolt for high-volume fire to prevent cook-offs and aid cooling, or from a closed bolt for more precise semi-automatic shooting.

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