I've recently switched from 9mm to 40 caliber with (hopefully) purchasing a Glock 23 gen 4 this Saturday. Like everyone else i've been having some issues with finding any 40 ammo let alone a certain grain. But with that being said, I was wondering what grain would be best to shoot in a 40 caliber. As always thanks for the help everyone. Wanna kill these ads? We can help!