This test evaluates the performance of Federal 124gr +P HST ammunition fired from a 16-inch 9mm carbine. In bare gel, the increased velocity caused excessive fragmentation and insufficient penetration (9.6-9.7 inches). However, when fired through four layers of denim simulating clothing, the ammunition performed optimally, achieving proper expansion and penetration (11.8-13.3 inches), meeting defensive standards. The instructor highlights how clothing can alter bullet behavior.
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