If a person wanted to shoot PRB in one, I am thinking he would think about one of the "tricks" of the old elephant hunters of the 19th century. Instead of fumbling with a loose patch and ball, they would sew the patch onto the ball, lubricate it with whatever, and keep it in a pouch on the front of their belt.
Time to load the rifle, grab up a handful of powder, drop it in the barrel, pull out a pre-patched ball, ram it home, cap and fire.
That would almost give you a firing cycle up there with an Uzi or a Mac10. Well, almost.
Dave2C, love the blunderbus. I would love to shoot that one. Looks good.
John