viking499, keep in mind that only a fool would plan on shooting an armed attacker only
once in an Imminent Great Bodily Harm or Death encounter.
And, no, to be clear, I am not saying that anyone here is suggesting that, and is, therefore, a fool.
In the ~35 years since I was issued my first VA CWP (and one of the pistols that I carried early-on was a .380 PPK/s), I have always planned to keep shooting center-of-mass, reloading as required, until the threat is removed.
With either my PPK or P3AT, that is 7 rounds prior to reload.
Upwards of 7 rounds, center of mass, with a 9x17 (heck, even with a .22LR) is going to have a major, telling effect.
And that will, almost certainly, be from CLOSE range because if I have the chance to scoot, I will.
Yes, one of my .45s would have the same effect with fewer bullets on-target, but sometimes I just cannot carry and/or conceal such a large/heavy handgun.