More than 60% of handgun owners in the U.S. use 9mm pistols for training and range practice. That is one reason many shooters choose larger packs like 9mm ammo 500 rounds when buying online. It saves time, reduces cost per round, and keeps you stocked for multiple range visits. But here is the thing. Not every deal online is the right deal. Before you add 9mm ammo can 500 rounds or a similar...