My standard mini shot close to one inch groups. Notice that I said "groups". I do not think I was ever able to get all the slack out of the side mount. With it the groups were a shot or two down here and a shot or two up there about two inches, alternately every shot or three. Anyway a ten shot string (Let it cool a little between shots) would result in two distinct groups, each around an inch, or a 3+ inch single group, depending on your point of view. It was minute of coyote to 200 yards. I am not sure I ever shot it farther. Jack