Hey there MTNMAN, I really like the Huntsman. I hated to give up hunting with my old built-from-a-kit CVA Frontier Carbine, but my eyes finally made that choice for me! I've had that CVA longer than any other longgun; about 25+ years I guess. For many a year, it was my only deer rifle, and it laid down a bunch. Not bad for a $99 homemade job...
My huntsman shoots great, it is only the Powerbelt's game-taking ability that is in question. Like Longcruise noted, Powerbelt performance seems erratic. What a shame - they load and shoot really well - and their concept is sound. Powerbelt has a lot to learn about bullet design and construction though.
Best load for me was 100 gr. loose Pyrodex RS with the 295 gr. Powerbelt, so I'll likely start at the same place with the 300 gr. Barnes. Then (if it shoots well) borrow about 4 of the 50 gr. pellets from my buds that shoot them, and go back and try them out of a clean, cold bore.
That should keep me busy for a while! - perklo