Back bore to remove pits

[tom tutwiler]

IMO it depends where those pits are. If they well towards the breech, perhaps. If they are half way or further down the barrels I'd say they are toast. That said, a bunch of smart folks will chime in who no doubt have more experience then I do for sure.

[Bill Graham]

Originally Posted by tom tutwiler

IMO it depends where those pits are.

The worst two are:

4" from from breech, 12 o'clock, right barrel.
2" from muzzle, 10 o'clock, left barrel.

The right barrel is the worse of the two overall, and both are littered with small ones along the entire length. I'm guessing corrosive ammo, and years of sitting uncleaned.

[OH Osthaus]

Originally Posted by Bill Graham

The worst two are:

4" from from breach, 12 o'clock, right barrel.
2" from muzzle, 10 o'clock, left barrel.

The right barrel is the worse of the two overall, and both are littered with small ones along the entire length. I'm guessing corrosive ammo, and years of sitting uncleaned.

as far as ammo goes--
black powder gets a bad rap for pitting- but IMHO - the corrosive primers used in the early days ( up to around WWII in some ammo) is the primary culprit