Ok, so here's an interesting problem.... I was using a .45 caliber brush as a jag to clean with. The fit was about perfect after wrapping a cleaning cloth around it. The brush came apart from its threaded 'base', and is now stuck all the way at the bottom of the barrel. I've taken the nipple off and used compressed air to no avail. Nothing I've stuck down there will grab it.
I've thought about pouring a small charge into the nipple hole, and firing it, but thought I'd ask y'all before I learn a lesson the hard way.