That's the exact same setup I'm running, thanks to this forum. The only difference is I'm running 300 grain Hornady SST's. I'll probably experiment with Barnes bullets next summer, before the 2014 season.
It's the first muzzle-loader I've ever owned, and I'm really impressed.
I've been using the exact same musket caps as you, with two 50 grain 777 pellets. 49 of 50 shots have gone off just fine on the first try. The lone exception was when I forgot to clean the break free out of the barrel before I loaded it.