It has been my experience that in the taking of about 40 or so white tailed deer with a handgun that the larger the bore with hard cast SWC bullets the faster the incapacitation. I also have noted that using HP jacketed bullets that a .44 mag seems to incapacitate quicker than a 158 gr JHP from a .357 Herrett even though the Herrett has substantially more kinetic energy. It is because of this admittedly limited "testing" that has caused me to hunt deer with a .45 acp (actually a .45 Super) rather than a 9mm. Big holes all the way through the body cavity seem to produce more reliable results than small holes.
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