Bought a new Vaquero recently (one of the clean up guns) and love it. Shot about 100 rounds through it and it mis-fired once. When I removed the empty cases I noticed on one empty case the firing pin just missed the primer.(see picture) I'm not a expert but this seems dangerous. I did nothing to this gun in the way of modification. Should I take the gun a part and clean it or ship it back to Ruger? It's only done it once in a 100 plus rounds.