to my other rifle. I had a 4.5-14x40 Nikon buckmaster on my custom 10/22 but decided it was to much power for a lil rifle so I moved it to my 308. My question is if the 308 had a high scope mount to accomodate a 50mm obj scope, what will be the adverse effect of having a 40mm obj on it? If the scope is a little high will that hurt the rifles accuracy for longer shots? I am going to keep my Nikon 4-16x50 for my 7mag and get my 10/22 a Nikon 4x40 or a nikon with lower power.