My most accurate semi auto is a M&P .45. Its made by Umarex. I use Crosman .177 Wadcutters in it. At 20' I can normally hit quarter size spinners freehand and I am a terrible hand gunner. I own a "Crosman .357" revolver accuracy is OK and just got a new blow back Beretta PX4 "Umarex". The PX4 is not very close to the point of aim but the blow back is pretty fun. I was looking at the Umarex 686. I wanted to find out if there are any other accurate multiple shot CO2 hand guns that I should consider.