If you could choose an ideal military sidearm (handgun), what would it be and why; also, if you could would you change the curent handgun calibre or stick it out with our trusty 9mm ? Anyone in the know who could enlighten me as to average effects/damage any given bullet in any given calibre could do to the human body ? I.e. differences between X vs Y etc? I really need some ammunition to shut up a bunch of yankee waltenkommandos in my local and their constant "my calibre is better than yours" debates. It's starting to really get on ma tits !