What is a high capacity magazine. Every firearm I own has the magazine that came with it. some 7 rounds, some 8 some 16 some 17 some 20 some 30. but all factory manufactured and issued with the firearm. If I have a 5 shot revolver then buy a 6 shot is that high capacity?, is a Taurus judge high capacity when loaded with shot shells. it could hold 30 or more projectiles in a 5 shot revolver. Is a 5 shot shotgun loaded with #12 shot "high capacity" that could be hundreds of projectiles??? I guess I'm just stupid cause I don't get it.