Lot Testing AAC 77gr OTM - How Consistent Is It?

This comprehensive review by Preston Moore, an expert firearms instructor, details the inspection and rigorous 30-shot accuracy testing of a Colt 6520 16" pencil barrel. The analysis includes detailed measurements, bore inspection, and comparative performance data with Federal Gold Medal 77gr Sierra MatchKing, PMC X-Tac M855, and ADI World Class 69gr Sierra MatchKing ammunition, providing valuable insights for AR-15 enthusiasts.

This video provides a detailed performance review of the LWRC IC MKII 12.7-inch upper receiver. It includes extensive 30-shot group testing with three different ammunition types at 100 yards, presenting detailed ballistics data such as average velocity, standard deviation, and extreme spread. The review also touches on the upper's technical specifications and internal condition, offering insights into its accuracy potential with various loads.

This video showcases two AR-15 style rifles used by Thai frontline soldiers, focusing on their customization and tactical applications. The presenter highlights the common use of 5.56 NATO/.223 Remington calibers and discusses effective ranges for different scenarios. The video emphasizes the importance of modularity and accessories like optics and bipods for modern military firearms.

This video provides a detailed review of Frontier's FR262 77gr OTM ammunition, a budget clone of the MK262 load. The reviewer tested it across five different AR-15 barrels, noting significant velocity variation between lots and individual shots, leading to poor extreme spreads and standard deviations in most cases. While some groups were decent, many exhibited flyers and inconsistent performance, particularly in shorter barrels. The FR262 generally achieved high velocities but struggled with accuracy compared to premium loads.

This video provides an in-depth look at IWI's new ARAD rifle, a short-stroke piston AR-15 variant. Presented by Jeremy from IWI at NRAM 2026, the discussion highlights its development for Israeli counterterrorism units and its subsequent US manufacturing. Key features include a quick-change barrel system utilizing a patented cam lock, a robust semi-monolithic handguard designed for rigidity, and a two-position gas regulator for suppressed and unsuppressed use. The rifle is noted for its soft shooting characteristics and accuracy potential, with availability expected soon at a retail price of $1499.

This video from Exile Armory LLC showcases a variety of firearms available for purchase, highlighting specific models, calibers, and prices. The presenters discuss new sponsorships, including Base Racing Fuel, and mention other local businesses supporting their racing endeavors. The video also features a segment on firearm safety and a motivational message about kindness and avoiding negativity.

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 provides an in-depth review and accuracy test of a Ballistic Advantage AR-15 barrel. The presenter, Preston Moore, details the barrel's specifications, including its Hensley profile, 16-inch length, mid-length gas system, and 1:7 twist rate. He conducts extensive live-fire testing with four different ammunition types at 100 yards, meticulously recording group sizes, velocities, and rifle stability scores using advanced equipment. The results are compared against Ballistic Advantage's sub-MOA guarantee, offering practical insights into the barrel's real-world performance.

This video provides an in-depth accuracy test of the Sons of Liberty Gunworks 16-inch SPR barrel, featuring unique polygonal rifling and a 5/8x24 thread pitch. The instructor conducts 30-shot groups with various ammunition types, meticulously recording data on velocity, rifle stability, and group size using advanced metrics like the A-ZED score. The results demonstrate exceptional accuracy, positioning the barrel favorably against competitors.

This video provides a detailed comparison of two BCM ELW (Extreme Lightweight) barrels, examining their manufacturing consistency and on-range performance. The presenter conducts thorough bench inspections, including gauging, weighing, and borescope analysis, highlighting potential manufacturing variations. Live-fire testing involves 30-shot groups at 100 yards with various ammunition types to assess accuracy, velocity, and consistency, offering insights into the practical performance of these lightweight barrels.