Got a barrel here in town,.......
Full Octagon, no taper or swamp, 1.095" across the flats, X 35"
about 50 cal ( no slugged dims, yet)
Wears a fixed elevation buckhorn, and a German silver blade front sight, underlugged for traditional flat wedges.
Looks to be a round ball ( slower) twist, but I haven't checked the Twist rate (yet)
It's marked J. Caswell.
Exterior's showing age and hard use, bore looks pretty good.
Looks like with a bit of judicious lapping it would shoot.
Anyone know anything about Mr. Caswell ?
GTC