zombieslayer
New member
The best way for me to tell what cartridge is more powerful is to shoot all kinds of stuff with various loads. After lots of informal "ballistics testing" to me the .40 is the clear winner in terms of destructive power. Ymmv.
By all means I am not trying to start a caliber war but I am asking if the 40 S&W has a significant advantage over a 9mm for CCW application?