I am looking into rebuilding a rifle I just got. Well the crown of the rifle is a little messed up not a whole lot because the rifle shooting like a dream. I would just like to clean up some of the nicks and burrs on it and others I have. I looked at the one on Midwayusa.com but this one doesn't look like it will do anything for my crown because it is a rounded crown. Is there another system out there that a DIYer could get his hands on for a little bit of money?