I don't know for sure. Just bought it haven't stripped it yet. But I had a snap cap and was just trying to get use to the trigger( It has a very good trigger break 3.5#). And notice that it was slow. When I was shooting I didn't notice it and it shot good groups. But compared to my bolts its much slower. Had both my sons try it they agreed it was slower. May run it by a local smith and let him have a look see.