Preston Moore's comprehensive review of the Proof Research 16" AR-15 barrel highlights its exceptional accuracy, consistently outperforming other high-end barrels in his extensive testing database. The barrel, chambered in .223 Wylde with a 1:7 twist, demonstrated impressive 30-shot group performance across various ammunition types, including Federal Gold Medal 77gr SMK, which yielded the best group of 1.257 MOA. Despite minor tool marks observed via borescope, the barrel's mechanical inspection and range results position it as a top-tier option for precision AR-15 builds.
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