mag41vance,
I have a 3x9x32mm Simmons scope on my Huntsman. With that setup and using 90 grains of FFFg and a 295 gr. powerbelt hollowpoint. I consistantly clover-leaf my shots at 100 yards. I shoot off a bench but don't use a "site-vise". I just use an old military ammo can that I lay an old towel across as my rest. However, I will state, that I also run two spit-wet patches down the barrel between shots, which cleans the black powder residue out of the bore.
Hope that helps,
Buck