I dont have a Hawken but I do have a Renegade. It has been a wall display for at least 5 years. I pulled off the rack swabbed out the barrel ran a seasoned patched down it and loaded 100 gr FFG black powder and loaded a Maxi-Hunter and shot a 3 inch group at 50 yards off rest. Gonna hunt late muzzeloader with it. Bought gun in 1983, it never would shoot round balls only maxi hunters or heavier maxi balls. My go to muzzeloader is a Encore that is shoots 200 yd. what a difference in guns!!