AK-74 Meltdown!

Published on September 15, 2016
Duration: 15:11

This video details an AK-74 meltdown test on a Definitive Arms converted Vepr 5.45, conducted by firearms expert Eric. The test involved sustained full-auto fire until failure, revealing an ammunition-related issue caused by melted lacquer primer sealant gumming up the bolt and firing pin. The assessment also covers barrel wear from extreme heat and high-velocity rounds.

Quick Summary

A Vepr 5.45 AK-74 conversion by Definitive Arms failed after 799 rounds of full-auto fire due to melted lacquer primer sealant from Wolf ammunition gumming up the bolt and firing pin. The heavy RPK-style barrel showed significant throat erosion and slight muzzle droop from the extreme conditions.

Chapters

  1. 00:00Introduction to the Vepr 5.45
  2. 01:30Meltdown Test Execution
  3. 05:55Failure and Initial Troubleshooting
  4. 07:15Diagnosis of Failure
  5. 08:18Final Assessment and Round Count

Frequently Asked Questions

What caused the Vepr 5.45 AK-74 to fail during the meltdown test?

The Vepr 5.45 failed after 799 rounds due to melted lacquer primer sealant from Wolf ammunition gumming up the bolt face and firing pin channel, preventing proper primer ignition.

What type of barrel does the Definitive Arms Vepr 5.45 conversion feature?

The Definitive Arms Vepr 5.45 conversion features a heavy RPK-style barrel, which is thicker and more rigid than standard AK barrels, offering improved heat dissipation and rigidity.

What were the observed effects of the 799-round full-auto test on the Vepr 5.45's barrel?

After the test, significant throat erosion was noted on the barrel due to the high-velocity 5.45x39mm rounds, and a slight muzzle droop was observed from the extreme heat generated during sustained full-auto fire.

What ammunition types were used during the Vepr 5.45 meltdown test?

The test utilized a variety of ammunition, including Wolf 60-grain hollow points, Silver Bear, and some 7N6 surplus, loaded into Tapco and Bulgarian Circle 10 magazines.

More Tactical & Gear Videos You Might Like

More from Iraqveteran8888

View all →