It goes without saying that everyone here is opposed to government restrictions on magazine capacity, but if you were, for whatever reason, stuck in a locale that limited handgun capacity to 10 rounds, would that have any effect on your choice of round?
I know that prevailing current wisdom is that when it comes to handguns, shot placement and capacity trumps bullet weight/diameter, but when capacity is limited, is it worth trying to milk extra ft. lbs. out of a handgun?
If you'd have asked me that questions as a much younger man and gun enthusiast, I'd have answered, "Yes", without hesitation.
After a career in LE, and 26 years of it spent being a firearms instructor, the answer is, "No", similarly without hesitation.
When the federal magazine capacity restriction went into effect (and CA crafted its own magazine/feeding device restriction), you could hear lots of gun enthusiasts debate this question and end up answering, "Yes" to it.
At that time I was working as a cop (and firearms instructor), and could buy any pistols or hi-cap magazines I wanted using my peace officer exemption.In all that time, the only pistol I bought which used hi-cap magazines was a licensed model of the P99 series, and it only used 12rd magazines. (I have a bunch of 10rd magazines for it, though, in case my honorably retired peace officer exemption is ever legislated away by a change in state law.)
Instead, I was buying a bunch of lower magazine capacity guns, and the calibers included 9's, .40's and .45's. The magazine capacities ran 6, 7, 8, 9 & 10rds.
Now, I only own 3 subcompact/compact .45's, but a bunch of subcompact/compact 9's & .40's ... and when I was still able to buy off-roster guns (CA thing), I bought a couple of LCP .380's (6rd mags) and a 3913TSW (compact single stack 9, 8rd mags) ... so, I guess I could still answer, "No", without hesitation.