Silhouette shooters, both center fire and rimfire adjust the turrets all the time. Serious silhouette shooters shoot thousands of rounds in practice every season. This is an area where barrels get worn out, and the scope goes on the next barrel. By far the scope of choice is the Leupold. I have shot for over 20 years, and I see very few failures. Weight is a consideration due to rules, but cost has no bounds. If Leupold was a liability, then over 90% of the scopes would not be Leupold. I personally could care less about brand loyalty. This is what you see when you are around guys that shoot ammo by the case, not by the box.
This is a great observation that makes me wonder if knob twisting AND recoil or rough handling are needed to create the failures. Relatively low recoil sillywet rifles probably see different treatment compared to rifles in tactical comp or combat. Or riding on an ATV or getting beat-on in rough environments and terrain.
