Other then the fact many states do not allow them to be used for large game like elk, moose, and bear I think for Whitetail and coyotes, etc., it will do just fine. As for the quality of the rifle you could not pick better. If I had the deal before me I would really have to think about it (I just do not need another inline)....
More and more stores are stocking .45 caliber projectiles. Also as far as one line purchase it is easy to obtain many different projectiles now. The only reason I could see turning it down is if you really have the black powder rifle part pf your life covered and just do not need another inline.....