Videos tagged with Bolt Face Wear

This video critically examines the 8.6 Blackout cartridge, questioning its purported advantages, particularly the emphasis on a 1:3 twist rate. The presenter argues that while the cartridge offers more energy than 300 Blackout, its significant bullet drop and limited effective range make it less ideal for hunting compared to other alternatives. The analysis delves into the physics of rotational energy, suggesting its contribution to terminal ballistics is often overstated and that faster twist rates can lead to increased barrel and component wear.

This video provides a detailed physical inspection of two Salient Arms International Bolt Carrier Groups (BCGs). The instructor, with clear expertise in firearm components, meticulously gauges and examines various aspects of the BCGs, including headspace, extractor fit, gas key dimensions, firing pin protrusion, and internal finish. Several issues are identified, such as oversized gas keys, potential extractor problems, a failed firing pin hole gauge, and significant internal machining marks, highlighting potential quality control concerns with these specific units.

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 video provides a post-2000 round assessment of the Arsenal SLR104 rifle, focusing on durability and performance after exposure to an ice storm and significant use. The presenter details cosmetic damages from drops, including a deformed front sight post and scratches, while confirming zero malfunctions with Wolf 60-grain ammunition. Internal component wear, such as on the bolt carrier tail and trunnion, is meticulously examined and documented, highlighting the rifle's overall resilience.