This guide details the process of hand-loading Mk 262 Mod 0 type .223/5.56mm cartridges, a task requiring advanced reloading skills. Expert Nutnfancy demonstrates precise techniques for case preparation, powder charging using an RCBS ChargeMaster 1500, and achieving consistent overall cartridge length (OAL) with Sierra 77gr MatchKing bullets and Ramshot TAC powder. The emphasis is on meticulous load data tracking and labeling for optimal long-range accuracy, particularly for 600-yard targets.
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