Been looking at a few rifle scopes I've narrowed it down to a couple but the leupold vx 3i cds is the one I'm favoring I really like the custom dial system it offers, I will be using it on my 300 win mag I don't really plan to shoot past 400 yards. Does anyone have insight or reviews on this scope.? Also its power comes in 3.5-10 or 4.5-14 what one would be better for the range I'm shooting thanks.