Clip;1552196 said:
I'm leaning towards the USP because of comfort and above all function. What's everyone's opinion on this, and should the .40 vs .45 argument affect my choice?
A firearm that you are comfortable with, can operate consistently, comfortably and accurately is far more important than caliber.
And in all honesty, the differences between .40 S&W and .45 ACP aren't that large.
My daily carry 230 gr .45 ACP rounds run at 950 ft/sec and 461 ft/lbs.
The equivalent 180 gr .40 S&W round runs at 950 ft/sec and 361 ft/lbs.
That's not a tremendous difference, yes less energy transfer with the .40 than the .45, but either is a pretty devastating hit to a man sized target . Both are more than large enough to do the job and for a defensive pistol, you're not going to really see that much of a difference in terminal ballistics when it comes down to it.
Get the gun that works for you, practice, practice, practice. I chose .45 ACP years ago as a daily defensive carry round for two reasons; because it's slow (less chance of overpenetration) and it develops a fairly massive wound cavity. I have
very large hands, so a large frame .45 feels good to me. I'm not really concerned about large capacity mags because quite honestly, I don't miss that often.
(People on this site who have gone shooting with me can tell you this isn't an idle boast, I've worked very hard to become more than "good" with a pistol)
I've fired several .40 S&W guns, and I like them quite a bit. Don't get bogged down in some preconceived notion about a specific caliber. Try different guns, find one that works for you. Provided you're talking about anything larger than .380 auto, you've got plenty of "power" to get the job done.
Well placed shots delivered with accuracy and consistency are worth a lot more than a big bore that you can't operate or can't hit anything with. If you're fumbling with slide controls and safeties and aren't comfortable with the gun, you're more likely to not be able to get the shot off accurately when you need it most.
Here's something that's fun to do. Go to an outdoor range. Run around outside of the shooting area for a good 2-3 minutes. Then step up to the shooting area and fire - that's a pretty good simulation of the kind of condition your body will be in if you're ever faced with a defensive shooting situation; hot, sweaty, full of adrenaline and out of breath. If you can handle a gun, and fire it accurately under those conditions, you're ready to be a defensive shooter. You're never going to get there if you aren't comfortable with the gun you're using.