Couldn't get my RWS 48 to group well to start with, then I remembered to check the screws (at the trigger guard). One screw was pretty loose, and after I tightened it up, it shot pretty well. Figured out the elevation knob on the mount, (lol, still a novice), and I have it hitting pretty much dead on at 50 yards, which is 2 inches high at 25 yds. for my rifle. Can't wait to get a chrony at see how it is shooting. I will be probably want it tuned in the near future as I don't really like that funny little kick when the trigger is pulled. A tune will dampen the twang/recoil? Well, can't wait to go shooting again.