I will not buy a Leupold VX scope which I feel is inferior to their Vari-X line, I've owned Vari-X Leupolds since the early 1970's. Never had any problems with Leupold scopes, I use mostly Vari-XII's 2-7x & 3-9x and I set them and forget them. Once they're sighted in I leave them alone, check zero before hunting season and I'm good to go.