Videos tagged with Muzzle Erosion

This guide details a comprehensive barrel autopsy procedure for an AR-15, as demonstrated by Chad Albrecht from School of the American Rifle. It covers essential checks including thread runout, material verification, erosion gauging, straightness, gas port alignment, and headspace. The critical step involves using a borescope to identify manufacturing defects, such as the smoothbore condition found in the featured Ballistic Advantage barrel, emphasizing the importance of thorough inspection regardless of brand reputation.

This video details the comprehensive gauging and inspection of a fire-damaged Palmetto State Armory AR-15. The instructor, demonstrating advanced gunsmithing knowledge, systematically checks critical components like the upper and lower receivers, bolt carrier, bolt, and barrel for warpage, undersizing, and wear using specialized gauges. While some components like the upper receiver bore and bolt face require attention, many parts pass inspection, indicating potential for refurbishment.

This video provides an in-depth physical inspection of a Knight's Armament SR-15 Mod 2 rifle, highlighting its unique design features and proprietary components. The instructor demonstrates specialized tools and techniques required for working on KAC firearms, emphasizing differences from standard AR-15 platforms. Key areas covered include the bolt and barrel extension design, gas system, ambidextrous lower receiver, bolt carrier group specifics, and various dimensional checks for headspace, throat erosion, and alignment.

This video provides an in-depth inspection of a 60-year-old Colt 601 AR-15 parts kit, utilizing a comprehensive array of USGI and modern gauges. The instructor, identified as a technical expert, meticulously checks various components including the barrel, bolt carrier group, and lower receiver for wear, corrosion, and proper function. The process highlights the importance of specific tools and techniques for assessing the condition of vintage firearms.

This video provides a detailed physical inspection of two 12.5-inch Hodge 5.56 carbine gas barrels. The instructor meticulously gauges gas port sizes, checks headspace, throat dimensions, erosion, straightness, and thread runout. A borescope is used to examine the internal condition of the barrels, including the chamber, rifling, and crown, highlighting the high-quality finish typical of match-grade barrels.

This guide details a comprehensive physical inspection of a Bear Creek Arsenal 16-inch AR-15 barrel, led by an expert from School of the American Rifle. It covers critical measurements like gas port size, headspace, and erosion, along with functional chamber tests and installation techniques including thermal fit and alignment checks. The inspection reveals potential issues with the throat length and crown, impacting compatibility with certain ammunition types.

This comprehensive guide details the autopsy of an Anderson Manufacturing 16-inch carbine barrel, performed by a professional firearms instructor. It covers critical inspection points including headspace, throat depth, muzzle erosion, chamber mapping, alignment, gas port size, and internal condition via borescope. The analysis highlights potential manufacturing defects and their impact on firearm function.

This comprehensive guide details an in-depth autopsy of an AR-15 upper receiver and a SOLGW Scalper Bolt Carrier Group (BCG) to diagnose potential corrosion issues. The process involves detailed visual inspection, borescoping the barrel, and extensive gauging of BCG components. Key findings include worn gas rings, minor pitting on the bolt face, and potential light corrosion in the barrel's rifling, likely stemming from ammunition or environmental factors. The guide emphasizes thorough cleaning and inspection to ensure firearm reliability and longevity.

This guide details a comprehensive barrel autopsy performed by Chad Albrecht of the School of the American Rifle. It covers the methodology for inspecting a Rosco Manufacturing 10.5-inch Nitride barrel after 26,750 rounds of full-auto fire, focusing on identifying wear points like muzzle erosion, throat erosion, and gas port wear that impact accuracy. The process utilizes specialized gauging tools for objective analysis.

This expert guide from Iraqveteran8888 details the process of performing a chamber cast to accurately identify a rifle's caliber, particularly useful for older firearms without clear markings. The instructor, demonstrating expert gunsmithing techniques, explains the necessary tools and materials, including Serosafe casting alloy and a reloading manual, to achieve precise measurements. The process involves preparing the chamber, melting and pouring the alloy, and then carefully removing and measuring the cast to determine caliber and assess bore condition, confirming the rifle as a 30-06 Mauser.