I would say it all depends on what type of silhouette shooting you are going to do.
I shoot NRA Field Pistol. I use a 3x12 rifle target scope and use the "taco hold". You can go as expensive as you want to. It will not take a beating from the recoil of the 22 but the turret knobs will get a workout and they may loose their adjustment ablility. I have had that happen with Lupolds and BSAs. Both have a lifetime warrenty and give quick service, but you are down for a week or two with both.
Sixgun