modern muzzleloaders are quite accurate, I've heard reports of downing animals out to 250 yards, and magazine writers are starting to accept the greater range of modern muzzloaders over the muzzleloaders of yesteryear
I say go for it...
if you buy a 200 dollar gun you should put a 200 (or more) dollar scope on it. Thats just my opinion, but I could be right tho...