RE: 1rst ml on the way
At least you have one of the finest muzzleloaders made. There will never be another reason to get another rifle other then the fact these things are like a bad habit. Once you start shooting them you always wonder what another one will do.
Congratulations on a fine rifle. I am sure the 250 grain Shockwaves and 120 grains of loose powder might make a good starting point for a load. It will take anything down you want to shoot. Keep us posted as to your rifle and the results you have...