Videos tagged with Dykem Test

This video debriefs the VSKA rifle after approximately 1500 rounds. The presenter details wear patterns on the bolt, trunnion, carrier, and hammer, noting surprising polishing on locking lugs but chewing on the bolt face. A Dykem test indicates a rebalancing of stress towards the primary locking lug. Three malfunctions are discussed: a hammer follow, a double feed, and a slam fire, with the latter being a point of concern for VSKA rifles.

This guide details a method for testing AK-pattern rifle bolt and trunnion lug wear using DyKem layout fluid. By applying DyKem to critical locking surfaces and cycling the action, users can visualize wear patterns. This technique helps identify potential issues like uneven force distribution between primary and secondary locking lugs, which can indicate manufacturing or assembly problems. The process involves careful application, dry cycling, live-fire testing, and analysis of the resulting wear marks to assess the firearm's mechanical health.