which "9mm" are we talking about? the 9x17mm (.380 auto) the 9x18 (9mm Makarov), 9x19 (9mmP, 9mm Nato), 9x21 IMI, 9x23Winchester, 9mm Supercomp? I ask because I have a 9mm that is not 'mainstream' but is none the less, reliable, accurate, powerful and controllable. Can I play here too?