Videos tagged with Headspace

This expert-level guide, presented by Ian McCollum of Forgotten Weapons, details the critical dangers of amateur headspace adjustments on an AK-type rifle. The video highlights how grinding down locking lugs, evidenced by visible tool marks on the bolt and barrel, creates an extremely unsafe condition. It serves as a stark warning against improper gunsmithing techniques that can lead to catastrophic firearm failure.

This video documents the process of building a custom 300 PRC rifle barrel, focusing on the use of a Helix 6 Precision carbon fiber wrapped barrel. The expert demonstrates precision machining techniques, including CNC work, manual truing, chambering, and headspace verification. The build aims for a balance of hunting practicality and competition compliance, adhering to weight regulations under 16 pounds.

This video demonstrates the dangerous consequences of firing incorrect ammunition in a .308 Winchester rifle. The host, exhibiting high-level expertise, tests .243 Winchester, .260 Remington, and 7mm-08 Remington rounds, highlighting issues like fire-forming brass, extreme inaccuracy, tumbling projectiles, and significantly reduced velocity due to gas blow-by. While technically possible in a dire emergency, the experiment concludes that using the wrong caliber is ineffective and hazardous.

This video showcases a comprehensive build of a custom 6.5 Creedmoor bolt-action rifle by Caleb and Alex at Brownells. The build utilizes a Zermatt Origin action and a Proof Research barrel, assembled within a KRG chassis. Key stages covered include trigger installation, headspace checking, chassis mounting, and final assembly, making it a detailed guide for a first-time bolt-action rifle builder.

This video, part 2 of a 4-part series, focuses on the Bolt Carrier Groups (BCG) of a Ruger AR556. Despite audio issues that prevented reshooting, the analysis details several mechanical problems found within the BCG. These include misaligned carrier keys, issues with YFS carrier key screws, rough runs in the carrier for the bolt tail and support, and inefficient gas ring runs. The bolt itself exhibits magnetization, damaged tails, and undersized firing pin runs, leading to sticky firing pins and potential headspace issues. The video also previews a forthcoming discussion on carrier binding with PMags in part 3.

This expert-level entry details the LaRue Tactical AR Armorer's Class from the perspective of Chad Albrecht of School of the American Rifle. It covers class prerequisites, a technical critique of a LaRue carbine (noting issues with buffer, receiver extension threads, and castle nut staking), and praises the course materials and instructor Rob Gee's teaching style. The review concludes with a 5-star rating and recommendation for AR enthusiasts.

This video features Steve and Caleb from Brownells discussing common misconceptions about checking firearm headspace. They explain that completely stripping the bolt, including removing the extractor and ejector, is often unnecessary for an accurate headspace measurement. The video aims to educate both gunsmiths and enthusiasts on proper firearm maintenance and safety, clarifying why certain practices persist despite not significantly impacting the critical headspace reading. They encourage viewer interaction through likes, subscriptions, and comments, and provide a tech line for further assistance.

This video details the assembly of a custom bolt-action rifle, focusing on installing a Proof Research barrel onto an Aero Precision Solus action. It covers the use of specialized tools like the Short Action Customs barrel vise and Aero Precision action wrench, emphasizing proper lubrication and torque specifications. The guide also demonstrates headspace verification using Go/No-Go gauges and an alternative barrel nut installation method, concluding with trigger and chassis assembly.

This in-depth autopsy of a Black Rain Ordnance SPEC15 AR-15, conducted by an expert armorer, reveals critical manufacturing and assembly flaws. Key issues include an undersized buffer spring, a buffer tube striking the receiver, a loose carrier key, an undersized magwell, and a significantly oversized gas port (.089 inches). These problems collectively lead to over-gassing, violent cycling, and component damage, explaining the rifle's failure to function reliably. The analysis emphasizes the importance of proper component tolerances and gas system tuning for AR-15 reliability.

This guide details the process of converting an AR-308 platform rifle to fire 6.5 Creedmoor ammunition, offering enhanced long-range ballistics. The conversion primarily involves replacing the barrel and ensuring proper gas system alignment. Key steps include disassembly, barrel nut torque, gas block installation, and critical headspace verification using specialized gauges. The video emphasizes component compatibility between .308 and 6.5 Creedmoor for AR-308 platforms.

Headspace is the critical measurement of free play a cartridge has within a firearm's chamber, essential for safe and reliable operation. Incorrect headspace, whether insufficient or excessive, can lead to dangerous malfunctions like extraction failures, case bulging, or catastrophic case head separation. Proper headspace is particularly important when dealing with military surplus firearms or custom builds from parts kits.

This video debunks the myth that AR-15 headspace issues are easily fixable by individuals. While technically possible, the complex process involving the barrel extension and indexing pin makes it impractical for most users. Short headspace might be corrected with a reamer on non-coated barrels, but the cost and difficulty often outweigh buying a new barrel.