Re: IOR scopes? How do the IOR scopes compare to the Leupold mark 4s, U.S.Optics, Nightforce, etc.? I know the USO and NF scopes are better than the leupold, but I am curious where the IOR ranks. your telling me im looking for my first scope over 1,100 but under 1,500 to mount on my 308 and...