Just got a box of 20 and I'm not sure I would recommend this round for the P3at. The bullet is long and half the time a round will not eject when hand cycling. I know after a shot the case should eject no problem but if you have a no fire or other malfunction and need to rack the slide, a full round will likely jam. I'll update this thread once I actually test fire a few. Please add your experience if anyone's tried these copper Magtechs.