During my duties as a firearms instructor for my PD, I had the opportunity to observe an LEO that wanted to qualify with this weapon as a primary weapon which required him to fire 50 rounds for qualification. Being young and still had those teenage hormones raging inside him, he want to use magnum ammo. I put him on the line with me close behind him and waited for the show. The first 5 rounds hurt, the second hurt more and the next 5 drew blood and I stopped the firing not because he wanted to stop, but rather, because we could not eject the spent case without a leather mallet. That was my was experience with the 360PD.