I've put about 400 rounds through it so far. Not a single jam or problem. I was told to avoid anything but brass case by a few friends, so i never tried Wolf or anything. Just PMC and Federal. A cop buddy of mine gave me 60 tracer rounds for it but I haven't found a place where I could use them. Go to work on some aerosol cans. My next purchase may be a Moisin Nagant. They have a couple here for 90 bucks, regular and carbine, and they come with 400 rounds.