They aren't magnums or gas rams but my HW95 .22 has a Hawke Airmax 3-9x40 AO with reversed Hawke Reach Forward Match mounts and a Sun Optics recoil scope stop between them. The Airmax is designed and built for springer use, has a wider field of view and the etched glass AMX reticle. The Sun Optics stop has a pin in the bottom that's a perfect fit for the scope stop holes on the HW rifles and nylon inserts front and back to help stop vibration to the scope.https://us.hawkeoptics.com/airmax-riflescopes.htmlhttps://www.trenieroutdoors.com/mounts/sun-optics-recoil-stop-11mm-dovetail/I have the same basic setup on my Beeman R9 .20 except the scope is a Hawke Panorama 4-12x40 AO IR that's also rated for springer use.https://us.hawkeoptics.com/panorama-riflescopes.html
I had a Bushnell 3-12X40 AR on my Trail NP2, 21 fpe, for over 25,000 shots. It now sits on my 2400KT. GREAT glass. I figured that if would hold up to an AR15, it would hold up to a springer. And I am right!! And before some uses the old "two-way recoil", a semi-automatic rifle ALSO has the two-way recoil!
It has been my experience that the 30mm tube and a droop compensating mount is the best solution to scope longevity. The closer to being mechanically centered when the scope is zeroed the greater the survive-ability of the scope also being magnum springer rated by the manufacturer helps as well.
Regarding powerful springers, probably the main ‘feature’ of a scope is a friendly warranty policy (to your location). Being in Brazil, imported scopes don’t have any warranty. For the Diana 350, trying to extend the scopes’ lifespan, I use the Sportsmatch DM 60 (dampa mount) or the Diana Bullseye ZR mount.My last acquisition, still waiting as a spare part.., is a Sightron SI Hunter/SIH 4-12x 40 with a MOA 20 reticle. Why? It was recommended by Héctor Medina.