outlan,
Welcome to the forum. I've never owned or fired a black powder gun but I've watched some being fired. Thet look like a blast to shoot although I hear clean-up can be a bit messy and time consuming.
rfo1
Actually they clean up quicker than a copper fouled barrel. A quick scrub with hot soapy water, rinse with hot water, run a couple of dry patches in to remove excess water, then let dry (residual heat from using hot water helps here) then apply lubricant/rust preventative. I can clean my little 36 cal fiintlock in about 15 minutes total.