This video tests 5.56mm MEN 55gr FMJ ammunition against M193 specifications using ballistic gelatin. The test reveals that this specific MEN ammunition did not fragment reliably when fired from a 10.5-inch barrel, exhibiting mediocre terminal performance characterized by bullet yaw and a limited temporary cavity. While it may perform better from a longer barrel, the instructor suggests that for home defense or general use where reliable fragmentation is desired, other M193 loads or higher-performance ammunition might be more suitable due to similar or better cost-effectiveness and terminal ballistics.
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