Your rifle will require the 11mm dovetail mounts. I buy the ones that fit both the 11mm and 3/8", that way I can use them on just about any rimfire dovetail mount. I bought a cheap set off of ebay, and they work well. I prefer them over the cheap Weaver type. Those always seem cheap to me. There are also Warne, but they are quite a bit more money. Good solid rings though, and trimmer looking`.
This is what I'm running:
Scope is a 4.5-14x42
Here's what the Warne rings look like:
Rifle: Winchester model 320