It's long obsolete as a military caliber, so no reason not to feed it with the best soft point or hollow point bullets you can find. It will raise the one stop percentage from around 70 to 95%+.
Who was that cop in New York that did all the stakeouts for bank robberies, and got involved in numerous gunfights? He carried an M1 carbine and walked out alive every time. He claimed that it worked like a charm.
I'm just getting a little tired of all these gunshow commandoes that keep repeating the same old BS all the time: They all fall to hardball (but only for the 45 ACP), the M1 carbine bounced off winter overcoats, The M16 jams all the time, because my uncle, father, brother, whatever carried it in Vietnam and what was true then is true now.