Wanted: 12 gauge RIFLED barrel blank or barrel

[Naphtali]

I seek a rifled 12 gauge barrel blank. A barrel rather than barrel blank should be okay if the chamber's outside diameter - that is, forward of any cut-out for a locking bolt for barrel-to-receiver lock - is 1.150 inches or larger. Break-open, bolt action, and slide action barrels might be satisfactory. Barrels from semiautomatics and double guns will not be satisfactory. The most trouble free item will be a barrel blank.

I'll make a cash transaction, or some sort of trade, if preferred.