Q&A 18: Ammunition Adventures (and more)

Published on May 17, 2018
Duration: 62:13

This Q&A session covers a wide range of firearms topics, from the pros and cons of disintegrating versus non-disintegrating ammunition belts to the historical reasons behind firearms manufacturing centers. Expert Ian McCollum discusses cartridge choices like 7.5x54mm French versus 7.62x51mm NATO, the mechanics of delayed blowback systems like the CMMG Guard, and the function of proof houses. The discussion also touches on historical cartridges like the 6mm Lee Navy, the viability of battle rifles, and the design evolution of French rifle triggers. Practical advice is offered on choosing Old West revolvers and identifying desirable British firearms.

Quick Summary

Disintegrating links are advantageous for aircraft use as they prevent long belts from flapping and potentially damaging the aircraft or pilot. Non-disintegrating belts are more convenient for civilian shooters due to easier collection and reuse, though military training often mandates their retrieval.

Chapters

  1. 00:00Introduction & Patreon Support
  2. 00:26Disintegrating vs. Non-Disintegrating Links
  3. 04:52Firearms Manufacturing Centers: Geography & History
  4. 06:42Why France Used 7.5x54mm into the 70s
  5. 09:40CMMG Guard Mechanism: Delayed Blowback Explained
  6. 12:32How Firearms Proofing Works
  7. 15:46The 6mm Lee Navy Cartridge: History & Failure
  8. 17:24Battle Rifles vs. Intermediate Cartridges in Modern Militaries
  9. 19:43Straight Triggers on Older French Rifles
  10. 22:59Best Old West Revolver: Merwin & Hulbert vs. Schofield
  11. 24:34Madsen Machine Gun Magazine Design
  12. 27:13Germany's Delay in Self-Loading Rifles (G43)
  13. 30:33Modernizing the Johnson Light Machine Gun
  14. 32:50Is 5.56mm NATO Due for Replacement?
  15. 33:38Most Meaningful Firearms-Related Gift
  16. 35:40.30-40 Krag vs. .30-06 in Modern Combat
  17. 37:31Upcoming International Trip: South Africa
  18. 39:22Quintessential British Firearms to Collect
  19. 43:20US Intermediate Cartridge Experiments Before WWII
  20. 45:22Best Sources for Military Surplus Ammunition
  21. 47:43Straight-Pull Bolt Action Rifles: Pros & Cons
  22. 50:31Improving the Mosin-Nagant Rifle
  23. 52:09Inertial Lock Mechanisms Beyond Straight Blowback
  24. 53:31FXO-5 & Howa Type 89 Rifles
  25. 54:50Making a Legal Firearm from Open Bolt SMG Parts
  26. 58:51Why France Rejected Remington Berthier Rifles
  27. 61:33Conclusion & Next Q&A

Frequently Asked Questions

What are the main differences between disintegrating and non-disintegrating ammunition belts for machine guns?

Disintegrating links are designed to eject each link after a round is fired, preventing long belts from flapping, which is crucial for aircraft use. Non-disintegrating belts remain intact and are easier for civilian shooters to collect and reuse, though military training may require their retrieval.

Why did France continue using 7.5x54mm ammunition instead of adopting 7.62x51mm NATO?

France's decision was largely driven by its withdrawal from NATO's integrated military command in the mid-1960s, a move by Charles de Gaulle to assert national independence. This political stance meant they did not adopt NATO standard calibers.

How does the CMMG Guard's delayed blowback system work?

The CMMG Guard uses a modified AR-15 bolt with angled lugs. When fired, the bolt's rearward movement against the receiver's locking recesses causes the lugs to rotate, delaying the bolt's opening without a gas piston, which is characteristic of a delayed blowback system.

What were the primary reasons for Germany's delay in fielding self-loading rifles like the G43 during World War II?

Post-WWI treaty restrictions, limited post-war military funding, and a strategic decision to prioritize machine gun development over semi-automatic rifles were key factors. The cost and complexity of mass-producing self-loading rifles were deemed less critical than other military needs at the time.

What makes the Smith & Wesson Schofield revolver a superior fighting handgun for the Old West compared to the Merwin & Hulbert?

The Schofield's break-open action allows for the simultaneous ejection of all six spent cartridges, enabling much faster reloading. The Merwin & Hulbert, while high-quality, uses a gate-loading system which is significantly slower for rapid reloads in a combat scenario.

More General Videos You Might Like

More from Forgotten Weapons

View all →