Captchee, you kind of make my point.
If it shoots a patched ball using black powder and is loaded from the muzzle, then it has the ballistic and repeat shot limitations of any gun that shoots a patched ball with black powder loaded from the muzzle.
It doesn't matter if it looks like Davey Crockett's rifle or if it looks like an AR-15 to the deer being hunted.
Igniting the charge with a primer does not give the rifle better ballistics nor does it make it speedier to reload. Primers are in fact nothing but fancy percussion caps.
"Do not invoke conspiracy as explanation when ignorance and incompetence will suffice, as conspiracy implies intelligence and organization."