First ... IMHO a rimfire that is dedicated to solely hunting and not making tiny groups DOES NOT need or warrant a scope with an AO, esp for game the size of fox. 2-7x and bee happy.
BUT, if you feel the need for an AO's scope, Leupold has their 3-9x EFR AO, <snip>
That is my choice -- I have an old Brno 452 that is really accurate. I settled on this Leupold 3-9x EFR AO scope after trying a lot of other scopes (including 6-24x AO and 8-32x AO). It is all you need...
This scope is small and light and looks appropriate on a hunting rifle but you can use the adjustable objective to train at the range or to shoot at short distances with an air rifle (the Leupold is safe for air rifles, many scopes fail on an air rifle that work fine on a .338 Mag).
Just my two cents worth.
John
