A 350? Perhaps you'd be better off with a magnum rated springer scope. I've had a Ruger air Hawk mangle a Banner- and it's no where near the recoil of your 350. If you're heart-set on a r/d, I'd suggest the Trophy 1X with the rheostat for 4 different reticles. If your 350 eats it, Bushy's warranty will take care of it. Stay away from the chinese knock-offs of this r/d. They don't have the warranty backing that Bushnell does.