Since your 22 small magazine has no markings It's not from Winchester. I haven't witnessed a 22 limited journal that was not the identical outside the house dimension as 22lr mag. I can’t visualize how a mag, such as you explained, could chance be safe when inserted. A photograph could https://highimpactrounds.com/product/winchester-super-x-20-ga-2-75in-3-4-oz-rifled-hollow-point-slug-1600-fps-5-rd-box/