Funny, I was just thinking of this while walking the dog this evening . . .wouldn't it be fairly simple to thread a conventional 12 or 16 gauge Pardner barrel for a breech plug, say something that takes primed 9mm Luger cases for ignition? You could just solder on a thimble for a ramrod (you'd have to make a ramrod with a threaded extension which you'd carry separately). Put a standard Huntsman/Sidekick forend on, and you'd have a single-barrel ML shotgun.
While I'm at it -- since I seem to be so fixated on shooting round balls for economy and simplicity, would it be possible to ream out a .50 caliber Huntsman barrel to .54 caliber, and rifle it at 1:60 or so for patched round balls? It seems that about 98% of the metal is already removed -- it wouldn't be like making a barrel from scratch.
Just a thought . . .
