I use the Burris and Warne mentioned and if you are on a limited budget BKL257( airgun section). One interesting solution is get an EGW rail( ebay the company sells here,ships to Canada) the rail takes both Weaver or Picatinny rings. One advantage is the height of the rail helps so you don’t have to remove the rear sight.
I picked up some Talley's from Prophet River (M100004) beautiful rings perfect fit. You might want to give Dan a call in St Pierre Manitoba (Rat River Outdoors) he might have some Leupold rings in stock.
I hear the Leupold rings are also a good fit.
I was sold the Leopold rimfire rings and they were a tad too big for the dovetail. Might be the sold me the wrong ones, but they said 11mm.
Nobody ever says anything bad about the BKL rings. I guess they just aren't priced high enough for some people LOL.