This expert guide details the process of conducting ballistic gel tests on Sierra 69gr HPBT ammunition, as demonstrated by an ARFCOM News instructor. It covers load development using TAC powder, test parameters including a 10.5-inch barrel with a 1:7 twist, and the analysis of terminal performance metrics like penetration, retained weight, and temporary stretch cavity. The guide emphasizes understanding bullet design purpose and comparing results against industry standards for effective ammunition selection.
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