Any scope that will stand the recoil of a .30/' 06 wil work on most muzzleloaders. I am not familiar with your Buckhunter. Is it drilled and tapped for scope mounts? If so, you' re all set. If not, I have found that using a piece of Brownell' s blank .22 cal., 3/8" tipoff type flat-bottomed scope mounting base material and .22 tipoff type mounting rings (I use steel ones) will allow you to mount a scope on an octagon barrelled muzzleloader, with not problems at all. I have an old Lyman 4X All-American mounted this way on a .50 Hawken with 7/8" barrel, weight 7-1/2 pounds, that has been on this gun since at least 1975. I have fired 370-grain Maxiballs out of this gun with as much as 130 grains of Curtis & Harvey musket powder, and my scope has stayed in place to this very day, with what people would consider a .22 rimfire mount holding it!!