I have an older American pigeon gun. Now don't start getting your panties in a twist just yet. She's a wonderful gun with a vent rib. The right barrel has a bore of .732 the last inch is .720 thickness of the metal is .052 the left barrel has a bore of .732 that choke tapers down to .690 barrel thickness is .060
To me someone has backbored this barrel maybe to clean up some pitting or they where onto plastic wads before anyone else was by 40 years LOL. When I compare the choking to other fixed chokes from the same maker something is not right. I'd like to get this issue addressed.
Does anyone know if I have enough metal to get thinwalls installed and if so would you have Briley or Teague do the job. This could turn out to be a wonderful clay gun and back up pigeon gun.
Just a thought: I wouldn't be too quick to assume that .732-inch bores are out of bounds for a gun of this period. It is possible that the gun was made to shoot brass shells. Brass shells were thinner than paper shells and their wads were larger, approximately 11 gauge or .750 inches. In fact, some few English guns were so bored without any forcing cones ahead of their chambers...the "chamberless" concept. (It's amazing how advanced shotgunning was in the early days of breechloading guns. Reading Greener, it seems like the only developments that have been "new" over the last 75 years, or so, are the widespread use of plastics and non-ferrous metals and more efficient mass production techniques.)
You are right about the possibilities of your gun. The Skimin and Wood gun that I referred to in my previous post weights about 8 pounds, two ounces. When I do my part, the gun is sudden death on anything I point it at.