Leupold failures? So common it is no secret at all. Most people that actually shoot rifles a lot as in benchrest will not be quiet on this subject of Leupold failures. It always comes down to the same old thing that Leupold refuses to address. Spring failure on the erector tube. That's why Cecil Tucker has been doing a spring up grade for years...
dave
Some of the bench rest shooters have also had their loopy erector assembly frozen in place and utilize external W&E controls.