Don't Know About All That
But I can put three 9mm shots on target. In that same time I can only manage one 40S&W and one 45ACP.
And yes I used similar size and type of gun. All Glock rentals, the 9mm and 40S&W were compact (19 and 23) the 45 was the full size model.
Just my personal experience. I'll stick with 9mm because the recoil is less and I can get more lead on the target.
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