I recently got this from a friend. It is a Winchester Model 12 from 1951. It has a heavy barrel with high rib. The make of the barrel is unknown. It has a screw in choke also unkown type (full choke). 31 inch barrel, 12 guage of course. Antone stock 14 5/8 LOP. The gun just kind of interested me, so I bought it. Any thoughts? I shot it one time at a games shoot and it busted birds from the 40 yard line really nicely.