I just recently purchased a Savage .25-06 and I am going to mount a Nikon 4-12x40 on it. I am also going to buy the same scope for my Savage .223. Just curious if I should sight the guns in with the scope on the highest (12x) magnification or the lowest (4x)? I am going to sight the gun in roughly 1 1/2 inches high at 100 yards in order to obtain a 200 yard zero. Thanks in advance!