I used Warne 721M 1 inch, Rimfire Med Height Matte Rings on my trio of Zephyr II's to mount my Vortex Crossfire II 6-18x44 AO scopes. The Zephyr II's have an 11mm dovetail and are great rimfire rifles. :bthumb: Some might consider these "over-scoped" but at the time it was the only AO scope I could find locally. As it turns out that 18x comes in handy for the 17 HMR & 22 Mag versions for these old eyes shooting small critters/targets at 100+ yards.
I use these Warne Rimfire rings on several of my rimfire setups - Made of steel, fit both 11mm & 3/8" dovetails, and never had a set come loose. Some don't care for the 70/30 setup but I have never marked a scope tube with my mounts.