Preston Moore

This review examines an 18-inch Proof Research AR-15 barrel chambered in .223 Wylde with a 1:8 twist. The barrel exhibited unexpected performance issues, including significant copper fouling and group sizes that underperformed compared to other Proof Research barrels tested. While initial measurements indicated tight tolerances and good machining, accuracy tests with Federal Gold Medal 77gr and Hornady 73gr ELD Match ammunition revealed inconsistencies and vertical stringing, particularly before a thorough cleaning.

This review examines the Sons of Liberty Gunworks 16" Liberty Fighting Barrel, detailing its construction and performance. The barrel features 4150 chrome moly vanadium steel, 5R rifling, and a DLC coated extension. Testing with various ammunition types revealed mixed results, with the barrel performing moderately with Federal Gold Medal 77gr SMK and poorly with Hornady 73gr ELD Match and PMC X-TEC M855. The reviewer notes some manufacturing artifacts in the chrome lining but finds the barrel extension fit to be firm.

This review examines the Sons Liberty Gunworks Combat V2 13.7" button-rifled barrel, comparing it to its Cold Hammer Forged counterpart. The analysis includes detailed measurements, material specifications, and extensive ballistic testing with various ammunition types. The barrel is constructed from 4150 chrome moly vanadium steel, QPQ treated, and features a 1-7 twist rate and mid-length gas system, demonstrating competitive accuracy for its price point.

This video provides a detailed review and performance test of a Sons of Liberty Gunworks (SOLGW) 13.9-inch Cold Hammer Forged Combat V2 barrel. The reviewer, Preston Moore, assesses the barrel's physical characteristics, including its construction from 4150 chrome moly vanadium steel, QPQ treatment, and gas system dimensions. He then conducts live-fire accuracy tests with three different ammunition types, documenting group sizes and velocities. The findings indicate that while the barrel exhibits good initial build quality, its accuracy performance was below expectations compared to other barrels tested under similar conditions.

This review of the Knight's Armament KS-1 rifle details its performance with various ammunition types. The rifle features a 13.7-inch cold hammer-forged 4132 chromoly vanadium barrel with a 5.56 NATO chamber and a 1:7 twist rate. Testing involved 30-shot groups at 100 yards to assess accuracy and heat effects, with results varying significantly by ammunition, indicating potential compatibility issues.

This video provides an in-depth review of a 14.5-inch Proof Research carbon fiber barrel chambered in .223 Wylde. The presenter details its construction, weight savings compared to traditional steel barrels, and conducts extensive 30-shot group testing with three different ammunition types at 100 yards. The analysis includes velocity, standard deviation, extreme spread, MOA measurements, and AZ scores, offering insights into the barrel's accuracy potential with premium and surplus ammunition.

This video provides a detailed technical review of the V7 Weapon Systems 12.5-inch barrel, including its construction, chamber dimensions, and performance with various ammunition types. The analysis includes specific group sizes, velocities, and standard deviations, offering valuable data for firearm enthusiasts and builders.

This video details a lot-to-lot consistency test of Fiocchi 55gr M193 ammunition. The instructor found significant variations in accuracy and velocity between different lots, impacting performance. Testing was conducted at 100 yards using two different AR-15 barrels, a 20-inch Bear Creek Arsenal HBAR and a 14.5-inch Hodge barrel, with data collected via a Garmin chronograph and Mantis X10.

This video provides a detailed comparison of five different brands of 55-grain M193 ammunition, evaluating their performance through two distinct AR-15 barrels. The analysis includes muzzle velocity, 30-shot group sizes, and AZ scores at 100 yards, offering valuable data for shooters seeking to understand brand-specific performance characteristics.

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 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 review and ballistic testing of the Centurion Arms FBI 11.5-inch CHF barrel. The presenter details its construction, technical specifications, and performance with various ammunition types, offering group sizes, velocities, and comparisons to other barrels. The review highlights the barrel's potential for accuracy despite minor cosmetic imperfections.