It wasn't a manufacturing facility concern for that model. Perhaps Artistic crafting of a typical inventory. Pictures would assist to find out the appx calendar year your rifle was designed. forty four With all the Significant Wall Variation, constructed for the more strong cartridges, just the highest of your breech https://highimpactrounds.com/product/winchester-super-target-12ga-2-75in-1-1-8-oz-8-shotshell-1145-fps-25-rd-box/