Not necessarily. For example, while A475 GI M1911 .45 ACP 230 gr FMJ does not tend to yaw or "tumble" in tissue, the AA18 .45 ACP 185 gr +P truncated cone FMJ issued for the Mk23 Mod0 pistol did yaw, often times turning 180 degrees."Correct me if I am wrong, but won't the flat meplat bullets penetrate without tumbling, while the round-nose FMJ's tumble, thus decreasing penetration?"
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