Muzzleloader breech plug is plugged!

[Shinneryfarmer]

I opened up a Hawkin percussion cap rifle by a couple thousands of an inch. After each shot it recocked the hammer. They make em tiny for a reason.

You just need to figure out a loading system. Who would have thunk it, Semi Auto percussion rifle.

 

[HiredHand]

This could be as good as dlbleak’s stuck choke tube thread.