The Russians can use our ammo but we can't use theirs...(they did that deliberately...)
I have others too...they weren't mine though. I'd have to work to disprove them.
As for your .22 over .22 magnum, in our east coast there was a thought process I met when posted there that used to run a 1/4" drill bit into a .22 rifle and make it into a .22 magnum... They were adamant it was perfection. Picture your Cooey ace or Winchester thumb trigger in .22 mag?