there are those that subscribe to mass (.45ACP), velocity (9mm,.357 Magnum) or a combination of both...I like whatevers handy when I need it...I have seen mass guys who couldn't afford old slabsides buy 147 grain hollowpoints for 9mms and I've seen velocity seekers load .45s with 165 grain Cor Bons...they aren't playing to the strengths of their calibers...
"Then said he unto them, But now, he that hath a purse, let him take it, and likewise his scrip: and he that hath no sword, let him sell his garment, and buy one." Jesus, Luke 22:36
"I do not feel obliged to believe that the same God who has endowed us with sense, reason and intellect has intended us to forgo their use." Galileo
It's better to have it and not need it than to need it and not have it..