I have the 20Ga thumbhole version. I loaned it to my buddy this fall and he put a one shot stop on a 160ish 12 point at 123 yards. Hornady Super Performance slugs. It is a legit 3" gun to 200. I bought it new and at the time thought the Nikon slug hunter would be worth a try. I hated it at first, but the erector has held up and the circles in the reticle are actually right on the nutz.