It all boils down to what you want to do with the rifle if you're going to be hunting in thick brush go with the shorter barrel light weight rifle if it going to be mostly shot at the range then go with the longer barrel heavier rifle pretty much any one you pick will shoot probably at least 3 inches at 300 yards depending on your abilities as far as maximum velocities and retained energy on target again it depends on what you are using it for you don't need much retained energy to put holes in paper or kill pdogs but if its larger game your after then its worth looking into