Actually it already has been done, though not in flintlock. There are aftermarket barrels that drop into a modern pump-action that turn the gun into a caplock, using the hammer already inside the gun, to detonate a cap. Basically the chamber is sealed with an adapter that accepts a nipple, and the adapter sits, fixed, where the shotgun shell would be, and the nipple where the primer in the shell would rest. For a while H&R offered a factory fitted optional barrel that did the same thing, you loaded the barrel from the muzzle, then broke the action open and placed a cap on the nipple, and you had a single shot 12 gauge muzzleloader. If it was cylinder bore OR if it was shortened to remove the chokes it was then a cylinder bore, you had the option of ball or shot.
IF you fashioned a steel insert of very good quality steel, you could probably "convert" a break action into a "caplock muzzle loader", but there are two concerns. First..., is the insert sufficiently secure to allow you to be legal with such a gun in muzzleloader season, and second, how badly will crud build up where the forward lip of the insert rests in the chamber? Can you properly clean it OR..., is it a matter of time until the pits are so bad within the barrel that the gun is done?
As an LEO I know of a couple of cases where dudes cut the brass from shotgun shells, inserted those with unfired primers into the breeches of their shotguns, then loaded them from the muzzle with black powder, to do deer hunting in muzzleloader season. Although they sorta "complied" with the law..., the judge found that since the guns could easily be reverted to shoot shells when the hunters were in the field, then they had fallen short of the requirement, and were thus fined for using prohibited firearms in the "primitive" hunting season.
LD
IF you fashioned a steel insert of very good quality steel, you could probably "convert" a break action into a "caplock muzzle loader", but there are two concerns. First..., is the insert sufficiently secure to allow you to be legal with such a gun in muzzleloader season, and second, how badly will crud build up where the forward lip of the insert rests in the chamber? Can you properly clean it OR..., is it a matter of time until the pits are so bad within the barrel that the gun is done?
As an LEO I know of a couple of cases where dudes cut the brass from shotgun shells, inserted those with unfired primers into the breeches of their shotguns, then loaded them from the muzzle with black powder, to do deer hunting in muzzleloader season. Although they sorta "complied" with the law..., the judge found that since the guns could easily be reverted to shoot shells when the hunters were in the field, then they had fallen short of the requirement, and were thus fined for using prohibited firearms in the "primitive" hunting season.
LD
