Hey Steve,
I shoot the Hawkens Sportized Carbine that is made by InvestArms. That is the same company that makes Lymans rifles. I love mycarbine. In thewoods it was a dream to carry and hunt with. I nailed a large doe with it and I was shooting a Barnes Expander sabot:

http://www.barnesbullets.com/products/muzzleloader/expander-mz/

As far as accuracy, it is a shooter. I group three rounds at 50 yds to inside 1& 1/2". I nevertried to go any farther since here inVirginia the country side is pretty heavey and thick. It handles conicals nicely. My barrelhasa 1 in24" twist rate.

I thinkyou will findthat you will enjoy your rifle. Good hunting!!!