a live ammunition cartridge sized to fit within the live ammunition firing barrel, the live ammunition cartridge having a selected live ammunition caliber round, so that the selected live ammunition caliber round is to be fired from the live ammunition cartridge, the live ammunition firing {TAIL ~ barrel} having a mounting surface to fit within {HEAD ~ the barrel} receiving cavity of the handgun 
a live ammunition cartridge sized to fit within the live ammunition firing barrel , the live ammunition cartridge having a selected live ammunition caliber round , so that the selected live ammunition caliber round is to be fired from the live ammunition cartridge , the live ammunition firing { TAIL ~ barrel } having a mounting surface to fit within { HEAD ~ the barrel } receiving cavity of the handgun
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