Lyman Borecam Digital Borescope

This video demonstrates the utility of a digital borescope for detailed firearm inspection and maintenance. Instructor Kevin Michalowksi from the US Concealed Carry Association highlights how a borescope can reveal internal conditions like fouling, rifling wear, and imperfections, aiding in effective cleaning and preventing potential malfunctions. He showcases its use on both rifles and pistols, emphasizing its value for identifying issues that might otherwise be missed, potentially saving on gunsmithing costs.

This video highlights a Wilson Combat barrel with an exceptionally rough chamber, described as having deep grooves. The instructor emphasizes that such imperfections can lead to extraction problems, especially in gas-operated firearms, as the casing expands into these grooves. He advises inspecting barrels for similar issues and removing them from service if found, recommending replacement with a barrel featuring a smoother chamber for improved reliability.

This YouTube video showcases Teslong's affordable borescopes at SHOT Show 2022. The video focuses on the features and options available for these inspection tools, highlighting their utility for examining firearm barrels and other internal components. While no firearms are demonstrated or sold, the context of the product (bore inspection) makes it relevant to firearm owners and gunsmiths.

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 video demonstrates the use of Pacific Tool & Gauge (PTG) function gauges for inspecting firearm chambers and throats. The instructor explains how these gauges differ from standard headspace gauges, providing insights into chamber dimensions, neck areas, and throat lengths. The video highlights their utility in identifying potential issues before live fire, especially in build classes.

This expert guide details the reassembly process for the Ruger-57 pistol, presented by Brandon Trevino from Ruger Firearms. It emphasizes thorough pre-reassembly inspection of critical components for wear and provides a methodical, step-by-step approach to putting the pistol back together. The guide concludes with a comprehensive functions check to ensure proper operation after reassembly.

This guide details a successful method for removing a stuck cartridge case from a firearm barrel using hydraulic pressure generated by a high-pressure grease gun. The technique, demonstrated by Johnny's Reloading Bench, involves a custom adapter and motor oil to hydraulically force the case out. The video highlights the importance of proper tools and high pressure, showcasing a successful extraction that saved a valuable Krieger barrel.

Instruction from a firearms enthusiast and reloader on preparing and sizing 300 Winchester Magnum brass. The video details the challenges of reloading for this caliber, including the long throat of the Thompson Center Compass rifle and the importance of proper neck tension and shoulder bumping. It covers selecting collets, setting up sizing dies, using specialized tools for case maintenance, and determining optimal seating depths for accuracy.

This video provides an in-depth review and performance test of the Vortex Diamondback Tactical 6-24x50 rifle scope, presented by Johnny, an experienced gear reviewer. The review covers technical specifications, a practical tracking test (box test) at 100 yards, and optical quality comparisons with other Vortex models. Johnny highlights the scope's First Focal Plane (FFP) reticle and its value proposition for its price point, while also noting limitations in optical clarity compared to higher-end models.

This video provides a comprehensive guide to reloading .22-250 Remington ammunition, focusing on a Remington Model 788 with a Douglas barrel. It details component selection (brass, bullets, primers, powders), case preparation, powder charging, bullet seating, and initial range testing. The instructor emphasizes accuracy and velocity, aiming to develop loads suitable for varmint and deer hunting, while also highlighting potential challenges with certain components and the firearm's specific characteristics.