Just to close the loop, I found a resource for my 93R17. On the Rimfire Central forum, there is a member who manufactures and sells a single shot adapter that pops into the magazine like a bullet and provides a nicely working platform. It is a good functioning INEXPENSIVE solution. I believe the same adapter will work with 22LR and maybe 22WMR. Go to Rimfire Central and contact rinardman (search). I am shooting his adapter constantly. It can also be popped out and you have your fully functioning magazine back. thanks rch