The EZ fit Kart barrel is a great barrel and I would think 2 inches at 50 yards would be obtainable with the right load with proper barrel fitting. However, don't think for a minute the EZ fit is EZ to install and fit. I would recommend the purchase of the fitting (about $40.00) kit which includes instuctions and a great little file. One of the hardest parts too is fitting the bushing. It comes fit to the barrel, but not the slide.