Videos tagged with Throat Erosion

The Iraqveteran8888 "Meltdown" video series, while primarily for entertainment, offers educational insights into firearm durability under extreme stress. The videos demonstrate that AR-15 gas tubes are a common failure point, often exploding around 650-750 rounds of full-auto fire. This testing highlights the importance of materials like Inconel for components subjected to high heat and pressure, suggesting potential for improved firearm design and longevity.

This expert-level guide details the inspection and performance testing of an LMT 12" Piston Barrel, drawing on Preston Moore's analytical approach. It covers critical physical inspections, including feed ramp updates and bore condition via borescope, alongside detailed group testing with various ammunition types. Moore's data-driven methodology provides insights into practical accuracy and potential durability concerns like chrome flaking.

This guide details a rigorous inspection and testing procedure for AR-15 barrels, as demonstrated by Preston Moore. It covers essential physical gauging, advanced borescope analysis to detect internal defects like pitting, and a structured approach to range testing with various ammunition types. The process emphasizes data collection for accuracy and velocity, highlighting the importance of thorough evaluation before and after live fire. Moore's objective and analytical approach provides high-level insights into barrel quality.

This video provides an in-depth evaluation of a 20-inch Red Right Hand LMG HBAR AR-15 barrel manufactured by Rosco. The instructor meticulously inspects the barrel's physical characteristics, including dimensions, weight, and bore condition using a borescope. He then conducts extensive live-fire testing with multiple ammunition types, collecting detailed data on velocity, group size, and shooter stability. The evaluation highlights potential quality control issues, such as chrome failure and bore imperfections, while also assessing the barrel's performance in a simulated LMG role.

This video provides an in-depth inspection and performance evaluation of the LMT 14.5" piston-driven barrel. The reviewer details manufacturing variations across three samples, including extractor reinforcement and feed ramp cuts. Extensive gauging and borescope inspections reveal issues like chrome flaking and throat abrasion in some units. Shooting results with various ammunition types demonstrate accuracy potential, with one barrel performing respectably while others showed defects.

This video details a comprehensive test of two HK MR556 A4 uppers, including a warranty claim due to an out-of-spec OTB pin. The review covers detailed inspections, accuracy testing with various ammunition types, and a comparison of performance metrics like velocity and group size. The presenter, Preston Moore, provides insights into HK's customer service and the technical aspects of the rifle's performance.

This video tests a high-round-count HK416 upper receiver, estimated at 20,000-25,000 rounds, after 10 years of SWAT service. The inspection reveals expected wear but impressive durability. Accuracy testing with three different ammunition types demonstrates the upper's continued capability, though with varying results influenced by ammunition and potential under-buffering.

This video provides an in-depth review of the Centurion Arms 14.7-inch cold hammer-forged, chrome-lined AR-15 barrel. It details the barrel's specifications, includes a borescope inspection of the chamber, throat, and crown, and presents comprehensive range testing results with three different ammunition types. The review highlights accuracy data, velocity readings, and offers a comparative analysis against other barrels tested.

This video provides an in-depth analysis of a Compass Lake Engineering custom AR-15 upper featuring a Bartlein barrel after approximately 3,500 rounds. The testing includes detailed accuracy evaluations with various ammunition types, velocity data, and internal barrel inspection for wear. The presenter, an experienced shooter, offers insights into barrel performance, component fitment, and the long-term durability of high-quality AR-15 components.

This video provides an in-depth analysis of a JP Enterprises 14.5-inch Supermatch lightweight AR-15 barrel after approximately 10,000 rounds. Lead Firearms Instructor Preston Moore details the barrel's specifications, maintenance history, and performance through rigorous accuracy testing with various ammunition types. The analysis includes visual inspection for wear, throat erosion measurements, and detailed group analysis with velocity and stability data, offering valuable insights into long-term barrel durability and performance.

Preston Moore, demonstrating high expertise, provides an analytical assessment of a Criterion CORE series barrel after 15,000 rounds. He details significant internal wear, including throat erosion and fire cracking, using specialized tools like borescopes and erosion gauges. Despite the degradation, the barrel still produced surprisingly acceptable groups with specific ammunition, highlighting its durability and the importance of testing worn components.

This video showcases donated "junk pile" AR-15 barrels and upper assemblies from Sons of Liberty Gunworks, highlighting common failure points and wear. The instructor uses these parts for educational purposes, demonstrating issues like port erosion, throat erosion, bent index pins, and off-center gas tube holes. This content is valuable for understanding firearm wear and potential defects.