I've been told that I can get 9mm ammo online by the case much cheaper than buying it by the box of 50 from Wal-mart. If this is true, could someone tell me what a reputable dealer might be, and what is a reasonable price for a case..as well as a brand to use. I want to practice with the new Glock, and hopefully get good enough to show up at one of the IDPA new shooter nights and not embarass myself.