I can recall reading about an over under where the barrels were machined from a single block. It seemed like a clunker. I think soldered ribs can lighten the barrels and help move the cg back between the hands. It might also come in handy to regulate a gun. If a cnced gun doesnt shoot correctly, whats the option, back bore the barrels and machine in eccentric choking?

Last edited by craigd; 01/24/20 06:54 PM.