The Ultimate Infantry Rifle - M468

Published on February 28, 2023
Duration: 21:26

This expert review from Military Arms Channel delves into the Barrett M468, a rifle evaluated for US military adoption. The analysis highlights its 6.8 SPC chambering, direct impingement system, and parts commonality with the M4 Carbine. It provides a detailed comparison of ballistic performance, recoil, and logistical considerations against the standard 5.56 NATO cartridge, concluding that the M468 was a highly capable system with significant advantages.

Quick Summary

The Barrett M468, chambered in 6.8 SPC, was evaluated by the US military as an upgrade to the M4 Carbine's 5.56 NATO. It offers superior ballistic energy and terminal performance but comes with heavier ammunition. Despite this, its recoil is manageable, making it a capable system, though ammunition cost limits civilian high-volume training.

Chapters

  1. 00:00Introduction: M4 Carbine vs M468
  2. 01:55The M4 Carbine and 5.56 NATO Limitations
  3. 04:02Barrett M468 Technical Overview
  4. 06:41Evolution to the REC7
  5. 08:28Weight and Logistics Comparison
  6. 10:48Ballistic Performance Analysis
  7. 14:50Recoil and Controllability
  8. 18:20Civilian Market and Conclusion

Frequently Asked Questions

What are the key differences between the Barrett M468 and the standard M4 Carbine?

The M468 is chambered in 6.8 SPC, offering superior ballistic energy and terminal performance compared to the M4 Carbine's 5.56 NATO. While 98% parts-compatible, the M468 features a different bolt and barrel, and was designed with specific suppressors in mind.

How does the 6.8 SPC cartridge compare to 5.56 NATO in terms of performance and logistics?

6.8 SPC provides significantly more muzzle energy (approx. 1694 ft-lbs vs 1168-1203 ft-lbs) and terminal effectiveness. However, 6.8 SPC ammunition is heavier, leading to a substantial increase in the weight of carried magazines.

What was the military's rationale for evaluating the M468?

The US military evaluated the M468 to find improvements over the M16/M4 platform, specifically addressing the terminal performance limitations of the 5.56 NATO cartridge at extended ranges, especially from shorter barrels.

What is the recoil like on the Barrett M468?

Despite the increased power of the 6.8 SPC cartridge, the M468 is described as controllable and pleasant to shoot, particularly when configured with a mid-length gas system and rifle-length recoil system, mitigating the 'punch' of the larger round.

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