What I've always wondered is those that say "a 9mm allows you to be more accurate on follow up shots due to recoil recovery" - or some variation of that.

Ok - sure. Great. But what's the degradation in accuracy between the two in any given shooter and more importantly is it large enough you endanger your chances of surviving the encounter? I may open up my group but what are the odds it opens enough to miss center mass? Assuming the first one went there to begin with.

9mm means 6/6 center mass
45 means 6/6 center mass - tho there's more space between them - does that really matter? Does one need benchrest accuracy and repeatability to be effective in an armed confrontation? Obvious answer is no and that's hyperbole. I agree but while everyone's saying "there's a difference!" - I'm wondering if the difference actually matters....

And I don't know how you'd be able to really measure that.


Me