I checked the date code, and the various online tables indicated the rifle was manufactured in 1953, year two of production. Someone had stuck a 7400 magazine in the rifle. It would not even lock in place. I sold the magazine on one of these gun forums and found a proper 760 magazine on eBay. I imagine the original magazine was tossed out with some old dear departed sportsman’s other knick knacks (possibly loaded with four rounds of greening Peters CoreLokt softpoints).

Last edited by dannycreasy; 09/11/18.