Slow Motion Malfunctions of Exotic Firearms

Published on June 25, 2019
Duration: 8:41

This video showcases exotic firearm malfunctions captured in high-speed slow motion, highlighting issues like dud rounds, short cycling due to gas system misadjustment, clip failures, case head separation, and magazine cross-feeds. Specific examples include the 1905 Mannlicher, Type 99 Nambu, .276 Pedersen, ZK 420S, ZH 29, BM 59, Type 100 SMG, Zip .22, Beretta PG, Bullpup 9, and Martz Lugers. The analysis emphasizes mechanical failures and ammunition-related problems, with Ian McCollum offering expert commentary on the causes.

Quick Summary

Short cycling in firearms like the Type 99 Nambu or BM 59 is often caused by issues with the gas system, such as misadjustment or an undersized gas port, preventing the bolt from completing its full travel to pick up the next round.

Chapters

  1. 00:00Introduction & 1905 Mannlicher Malfunction
  2. 00:27Type 99 Nambu Gas System Failure
  3. 00:45.276 Pedersen Clip Ejection Failure
  4. 01:06ZK 420S & ZH 29 Short Cycling
  5. 02:27BM 59 Undersized Gas Port Issues
  6. 03:29Type 100 SMG & Zip .22 Failures
  7. 04:39Beretta PG Burst Mechanism Flaw
  8. 05:33Bond Arms Bullpup 9 Bullet Pull
  9. 06:21Martz Luger Ejection Failures

Frequently Asked Questions

What causes short cycling in firearms like the Type 99 Nambu or BM 59?

Short cycling in firearms is often caused by issues with the gas system, such as misadjustment or an undersized gas port, preventing the bolt from completing its full travel to pick up the next round.

What kind of malfunctions did the Zip .22 exhibit?

The Zip .22 demonstrated multiple severe malfunctions, including failure to eject spent casings and failure to feed new cartridges, leading to its critical assessment.

What is a 'bullet pull' malfunction?

A 'bullet pull' malfunction occurs when the firearm's action, particularly in rearward feeding designs, pulls the cartridge case off the bullet due to insufficient case crimping, dumping gunpowder into the action.

Why did the .276 Pedersen rifle have an en-bloc clip failure?

The .276 Pedersen rifle showed a failure where the en-bloc clip did not eject properly after the last round, instead bouncing around inside the action, indicating a potential issue with the clip or ejection mechanism.

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