Since your 22 limited journal has no markings It's not at all from Winchester. I haven't noticed a 22 small journal that was not the exact same outside dimension as 22lr mag. I can’t think about how a mag, such as you described, could likelihood be protected when inserted. A https://highimpactrounds.com/product/winchester-target-223-rem-55-gr-fmj-3240-fps-20-rd-box/