Murom Mechanical MM Primers Are Trash!!!

Published on January 10, 2026
Duration: 11:51

This video provides a critical review of Murom Mechanical Large Pistol Primers, highlighting significant reliability issues including squib loads and hangfires. The Gun Dungeon Host, an experienced reloader, demonstrates methodical testing using a Glock 20 and Springfield Armory XDM in 10mm, confirming the Murom primers as the sole cause of failure by comparing them to reliable Remington primers. The host strongly advises against using these primers due to safety concerns.

Quick Summary

Murom Mechanical Large Pistol Primers (KVB-45E) demonstrated critical reliability failures, including dangerous squib loads and hangfires, during testing in 10mm firearms like the Glock 20 and Springfield Armory XDM. A control test confirmed these primers were the sole cause of malfunction, leading the host to strongly advise against their use due to safety concerns.

Chapters

  1. 00:00Introduction & Primer Identification
  2. 01:04Glock 10mm Live Fire Failures
  3. 02:56Failure Analysis: Powder Check
  4. 08:16Cross-Platform Verification (XDM)
  5. 10:16Control Test: Remington Primers
  6. 11:24Conclusion & Safety Warning

Frequently Asked Questions

What issues were encountered with Murom Mechanical Large Pistol Primers?

During testing, Murom Mechanical Large Pistol Primers (KVB-45E) consistently failed to ignite properly, resulting in dangerous squib loads where bullets lodged in the barrel and hazardous hangfires with delayed ignition.

How were the Murom Mechanical primers tested for reliability?

The Gun Dungeon Host tested the Murom primers in both a Glock 20 and a Springfield Armory XDM chambered in 10mm. A control test using identical reloads with reliable Remington 2 1/2 Large Pistol Primers was also performed to isolate the failure point.

Are Murom Mechanical primers safe to use for reloading?

Based on the testing, the host strongly advises against using Murom Mechanical Large Pistol Primers due to their unreliability and the safety risks associated with squib loads and hangfires. The video emphasizes using high-quality components.

What is a squib load and why is it dangerous?

A squib load occurs when a projectile doesn't have enough force to exit the firearm's barrel, leaving it obstructed. Firing another round into an obstructed barrel can cause catastrophic firearm failure, posing a severe risk to the shooter and bystanders.

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