I only now own one Leupold. I have had issues with some other Leupolds. Mostly tracking and not holding zero. Not a 40X, but a 8X32 Mueller for a target 22LR. No issues at all, and it was a "cheap" scope. For other rifles, Kahles, Zeiss, Sightron, and Burris have severed me well. Of course I can't shoot very well either. I don't hate Leopold's, I have just found that there are many other options that are perhaps better than some of the current offerings.
