With out sacrificing personal security . In practical terms ,How much ammo is prudent, and why ? I have a significant surplus of air gun ammo for training, practice, and very small game (rabbits). From .17 HMR to 12 ga. I buy a box or two of every type and caliber on sale at least one or twice a month (when i get paid). My own goal is at least 1000 rounds of each or more depending on the opportunity at hand. I haven't done any regular shooting due to circumstances beyond my control, but its been good to get my reserves built.