Considering the fact that your 22 small magazine has no markings It's not necessarily from Winchester. I have never found a 22 quick journal which was not exactly the same outside dimension as 22lr mag. I'm able to’t visualize how a mag, such as you described, could risk be safe https://highimpactrounds.com/product/winchester-xpert-20-ga-2-75in-6-3-4-oz-1325-fps-game-load-25-rd-box/