A newbie I know got a sudden hard-on for 40 cal. “It’s what the cops use,” he said. “It’s not as cheap as 9mm,” I pointed out, knowing that my ballistic buddy was going to be doing a LOT of shooting. “It’s also harder to manage the recoil, so you’ll probably going to be less accurate. And it doesn’t make as big a hole as a .45.” I didn’t get into the .40’s history: the whole post-1986 FBI shooting “we need a bigger caliber so how about we neck-down this 10mm cartridge” deal. I think I convinced him with this: “This isn’t Goldilocks and the Three Bears. There is no ‘just right’ caliber. Big holes (.45) or more filling (9mm); pick one.” Am I wrong?