Wet a patch with Rubbing alcohol, the 90% type for its quicker evaporation, and run the patch through the bore on either the 'smokepole' or the bolt-gun. Start the patch at the breech, of course, on the bolt gun. Run the first patch, each time, only one way through the bolt gun to remove the abrasives from the smokeless primers. Then a second patch can be run back and forth.
I believe that rubbing alcohol is very effective at cutting black-powder fouling......thinking I've read that somewhere before.
Take care.
SS'
p.s. NEVER blow from your mouth through a smokepole to cool it, or to extinguish embers in it. It can be deadly if you're in a habit of doing it and develop a 'hangfire' on the firing line. One guy, at least, has reportedly killed himself that way!