As long as the reticle is "etched", it's good to go???
Not necessarily. I put a spare Burris E1 2-7X, with an etched reticle, on my Diana springer and it simply will not hold zero.
I have a Hawke Airmax 4-12 with AO and it holds zero on my Diana. Later I mounted it in a Diana Zero Recoil mount that really absorbs the recoil jolt from a springer. I lost a tad bit of accuracy, but it still shoots minute of starling at 180 feet.
https://www.airgunsofarizona.com/scope-mounts/diana-bullseye-zero-recoil-mount-1-rings-dovetail/That mount works well on a longer scopes. Shorter scopes may not fit without some adjustment to the mount. The ring that's out there on the recoil rods have screws in the botton so you can loosen them and slide them in a bit. But only a bit since one doesn't want to affect that range of travel too much.
