Videos tagged with Cut Rifling

This guide, presented by Josh from AT3 Tactical, explains the fundamental concepts of AR-15 barrel rifling and twist rates. It details historical methods, modern manufacturing processes like button rifling, cut rifling, and cold hammer forging, and clarifies how twist rate impacts bullet stability based on weight. The information is presented with an emphasis on practical application for firearm owners.

Thompson/Center Arms has acquired Green Mountain Rifle Barrel Company, a move focused on vertical integration and enhancing their barrel production capabilities. This acquisition brings decades of specialized knowledge in barrel making, including expertise in 5R rifling and cut rifling, ensuring high-quality components for both T/C firearms and other industry partners like Ruger and Q. The facility boasts advanced manufacturing processes and stringent quality control measures.

This video provides an in-depth review of the Geissele 18" SPR cut-rifled barrel. It details the barrel's unique features, including the phased raid gas system and larger thread diameter. The review includes detailed bench inspection, headspace gauging, and extensive range testing with four different ammunition loads, presenting group sizes, velocities, and AZE scores for each.

This guide details the expert-level process of manufacturing premium rifle barrels at Green Mountain Rifle Barrel Co., as explained by their owner and technicians. It covers everything from raw material selection and precision drilling to advanced rifling techniques, critical stress-relieving heat treatments, and final quality control measures like bore inspection and air gauging. The instruction highlights the meticulous attention to detail required for producing high-accuracy barrels.

This guide details the process of breaking in a new firearm barrel, primarily focusing on premium match-grade options. It explains that break-in is intended to smooth microscopic imperfections from the manufacturing process, like button or cut rifling. The process involves firing shots and cleaning between them to manage copper fouling. Barrels with hard finishes like chrome-lining or nitriding, common in AR-15s, generally do not require this procedure. The information is presented with high authority by Brownells, a leading firearms parts and gunsmithing resource.

This video reviews the Magnum Research BFR revolver chambered in .45-70 Government, highlighting its suitability for dangerous game. It details the firearm's substantial weight, impressive accuracy with both heavy magnum and subsonic loads, and comfortable trigger pull. The review also touches upon its construction and available calibers, recommending optics for serious use.