$2.70 per shot just for the powder
Probably a smokeless propellant they are trying to keep under wraps because its not going to be offered loose.
Wont be legal in any state that wont allow pellets and requires loading ONLY from the muzzle like mine.

$500+ for a form 4473 muzzleloader....Why bother when you can convert a CVA Hunter 45/70 to a ML for that $$$$s and shoot projectiles MUCH faster for MUCH less per shot?