If I could find .40 with JSP or SWCHP I think the little round would be an excellent round for personal carry. As a target shooter it groups nicely at twenty yards out of the Glock 23 I own.
.40 JHP, especially in 165 or 180 grain, will definitely penetrate plenty deep enough while opening up and having more immediate effect than an FMJ bullet. If you want a lot of penetration, why not go with something like Hornady's XTP, that bullet typically penetrates deeper than any other functional JHP I know of. I said functional because if a bullet design doesn't open up then it might as well be FMJ, which in calibers like 9mm and .45 generally will penetrate about two feet or more in gel. I know gel isn't people but it is what we have to compare performance with, and it does a good job at it.
The .40 is'nt a compromise IMO, .45 and 9mm are.
I agree. .40 can put out a pretty hefty slug at a good clip while both 9mm and .45 have to give up one to get the other. In service pistol terms anyway.
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