I'm certainly not one of the experts here, but I always heard that dirty barrels made patterns tighter. It really does not matter to me because I'll clean my barrels at the first opportunity no matter what. The only time I've ever worried about shooting dirty barrels has been on hot barrel SA dove shoots where the plastic melts in my chambers and barrels...Geo

Last edited by Geo. Newbern; 10/01/21 10:11 AM. Reason: added final sentence