This video details the reloading process for cloning Mk 262 Mod 1 ammunition, focusing on testing Sierra MatchKing and Nosler Custom Competition 77-grain bullets with Accurate 2520 powder. It covers brass preparation, including decapping, tumbling, resizing, trimming, and primer pocket crimp removal, followed by powder charging, bullet seating to a specific overall length (2.246 inches), and light crimping. The instructor also conducts ballistic testing to compare velocities and accuracy between the two bullet types, aiming to replicate the performance of Black Hills factory ammunition.
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