I've wondered off and on if, using the "barrel stubbing" concept if one could convert a barrel, say a Green mountain muzzle loader, to a breach loader for BP cartridge work.
Being somewhat uninformed on these matters, yet still liking to dream it seems like it "should" work.
I think of this cause I like the octogon barrels and their prices. Since they take pretty hefty BP charges, would it stand up to breech loader pressures (BP only) of say a 45-70? Seems like one could take the ML barrel, thread it and insert it into a stubbed and threaded pre-fitted chamber section of a donor barrel. It could then have the chamber reamed to the appropiate caliber. Is this hair brained?