One other addition -- make sure you' re careful around the muzzle w/ your cleaning rods and ramrods. The muzzle rifling seems to be critical.

I think you' ll find shooting the muzzleloader to be quite enjoyable. If you have a bit of patience for the art of testing loads and of course, clean up, you' ll find that shooting BP has a romance that catridge guns can' t touch. And you' ve got to love the smell of real black powder.