It wasn't a manufacturing facility situation for that model. Most likely Artistic crafting of a regular inventory. Photos would assist to determine the appx calendar year your rifle was built. 44 22LR, not for your 69A’s .22 S, L, & LR. I suppose this meant that the chambering and rifling https://highimpactrounds.com/product/winchester-aa-12-ga-2-75in-1-1-8-oz-8-lead-1145-fps-25-rd-box/