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.
This comprehensive review by Preston Moore analyzes the performance of AAC 77gr OTM ammunition across six different AR-15 barrels. The study meticulously documents group sizes and velocities from 30-shot strings, providing valuable data for shooters. The Noveske Rival V2 17" barrel achieved the best results, demonstrating the critical role of barrel selection in ammunition performance.
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