I have a Ruger 77/22 that I mounted a Leupold 2-7x scope on. I cannot get the scope to come on target try as I might. For some reason it shoots about 6 inches low and there is no more adjustment in the scope to raise the bullet impact. I'm suspicious of the rings and bases that were supplied with the rifle. Does anyone out there know if one base is higher than the other? The bases I have are both the same height. I highly doubt it is the Leupold scope at fault but that could be a possibility.