Preston Moore

This review of the Green Mountain 12.7" AR-15 barrel highlights its lightweight profile and budget-friendly nature, suitable for general use. While the barrel exhibits minimum spec chamber and throat dimensions, its performance is significantly hampered by an oversized gas port, leading to an overgassed system and poor shooting experience. Accuracy varied considerably with different ammunition types, with match-grade loads performing better than M193.

This expert-level review by Preston Moore details a comprehensive test of the LMT 12.5" Direct Impingement barrel. The analysis includes a thorough borescope inspection revealing minor imperfections in the chrome lining and throat, alongside detailed ballistic testing with three different ammunition types. The data provides valuable insights into the barrel's accuracy, velocity, and overall performance compared to other models.

This comprehensive review tests ADI World Class 69gr Sierra MatchKing ammunition across nine different AR-15 barrels. The analysis employs a rigorous methodology, including 30-shot groups at 100 yards and advanced data collection tools, to evaluate accuracy and velocity. The Seekins 16" barrel emerged as the top performer, demonstrating the potential of budget-friendly match ammunition when paired with the right barrel.

This review provides an in-depth analysis of the Seekins Precision 16" AR-15 barrel, including detailed technical specifications, physical inspection, and performance testing. The barrel features a .223 Wylde chamber, 1:8 twist, and mid-length gas system. Testing involved 30-shot groups at 100 yards using various ammunition types, with results evaluated using the 'A-ZED' scoring system. The review highlights the barrel's construction and performance characteristics.

This video provides an in-depth review and testing of the Centurion Arms MK12 18-inch 5.56 NATO barrel. Preston Moore, demonstrating high expertise, meticulously inspects and tests the barrel with various 77gr loads, including MK262. The results highlight the barrel's accuracy potential, particularly with MK262, and offer valuable data for AR-15 builders and precision shooters.

This comprehensive review details the performance of a custom Krieger AR-15 barrel, finished by RPM Rifle Works. The barrel, featuring a 1:7 twist and intermediate gas system, was tested with various match and bulk ammunition. Expert analysis includes detailed borescope inspections, group size measurements, and velocity data, highlighting its exceptional accuracy potential with premium loads.

This review details the Centurion Arms 14.5-inch RECCE barrel, including technical specifications, bench and borescope inspections, and extensive 30-shot group testing. Preston Moore, demonstrating high expertise, found bore and rifling defects but noted improvements after warranty work on the crown, providing detailed performance data for various ammunition types.

This expert review of the SOLGW 11.5” MK1 CAR upper receiver, conducted by Preston Moore, details its build quality and performance through rigorous testing. The analysis includes detailed technical specifications, internal and external measurements using precision gauges, and extensive range testing with 30-shot groups. The barrel demonstrated consistent accuracy and velocity across various ammunition types, highlighting its potential for sub-MOA performance.

Preston Moore conducted a comprehensive test of PMC X-Tac M855 62gr ammunition across eight different chrome-lined AR-15 barrels. The test focused on 30-shot groups at 100 yards, measuring both velocity and accuracy using advanced tools like the Garmin Xero C1 Pro and Ballistic-X app. Moore's 'A-ZED' metric provided practical accuracy insights, revealing that LMT, Krieger, and Noveske barrels generally performed best with this specific ammunition load, while Daniel Defense and Red Right Hand barrels showed less favorable results.

Preston Moore revisits the LMT 12-inch piston barrel, detailing its specifications and conducting a thorough physical and borescope inspection. The review highlights updated features but also reveals significant chrome flaking issues. Performance testing with various ammunition types provides empirical data on accuracy, with results analyzed using practical metrics.

Preston Moore, demonstrating high expertise, evaluates five Kaiju Rifle Co. Chimera AR-15 barrels from Bad Attitude Department. Despite initial promising specs (16"/12.5", 5.56 NATO, 1:7 twist, 416R stainless steel), borescope inspection revealed severe internal pitting due to improper media blasting. Range testing confirmed poor accuracy (2.4-4.5 MOA) despite high muzzle velocities, with one load completely missing the target. Bad Attitude Department acknowledged the defect, issued refunds, and removed the product.

This video provides an in-depth lot testing analysis of AAC 77gr OTM ammunition, comparing consistency and performance across different production runs. Lead Firearms Instructor Preston Moore utilizes advanced equipment and a rigorous methodology to evaluate velocity, accuracy, and lot-to-lot variance. The findings suggest AAC 77gr OTM offers a cost-effective option, though it exhibits less consistency than premium match-grade ammunition.