Enjoying the evening, another old gun working again. Looking forward to getting CM's lathe making parts for these old shooters. The Cooper is first on the list.
Going to bore the Cooper to 7/16 and turn a 32-20 liner to 7/16, this should get the Cooper shooting with 32 caliber balls easily and accurately like the Bacon. Assuming this works OK I'll hang out my shingle to restore 31 caliber bores in BP revolvers.