I am using clean shot 50 grain pellets 2 and a 250 grain 45 caliber bullet in a harvestor crush rib black sabot. clean it is dead on at 100 yards but will drop a inch or so with a second shot. Swab it with windshield wash and back to dead on. They are very clean and shoot well. When I swab after 5 or 6 shots you get some gray on the patch. No problems loading shot after shot.