I've got one; 2nd muzzleloader I've owned. It is a good rifle, esp. considering low price (i got it for 80 bucks a few years ago, post-season sale at WallyMart). I've got a 4x scope on mine, standard load is 90gr Pyrodex RS (it was on sale, too, bought several pounds at $6/pound and quit using 777) with a 240gr XTP.
Dead deer. The Buckhorn biggest attributes are... excellent trigger, very nice stock.