Ok guys so far for My optics setup I've been through all the different scopes and after looking through night force's, sightrons, vortex vipers, Leupolds I decided a leulpold Mark 4 6.5-20 x 50 would be my best bet.

I have one question though. Is there a difference in clarity, sharpness, resolution, and ruggedness between a variable like the 6.5-20 and say a fixed 10x scope?