I have other guns with shorter barrels. Also the Slixshot unit has a slot cut down the length of it which allows it to slip on over the web portion of the load lever so you don't just pressure the weak end of the lever. Don't know if I will use it much but Ive had a wrist reconstruction and arthritis in both hands. If I need it to not stress the hands, I'll use it. So far with the 1860 and .454" balls, not necessary at all. With the shorter gun, maybe.