I'm looking for a little optic advise . I'm looking for a new scope for a 20" barreled 5.56mm AR . It will be used mostly off a bench or prone from 100-600 yards . Sadly this is all I have access to and will be used mostly to 300 . The longer ranges are a hell of a drive . I'm looking in the 4-16 range of magnification at the moment . The Vortex Viper PST and the Zeiss Conquest are what I'm looking at with around a 1K budget . Is there a clear preference between the two or is there another option I should be looking at ? Thanks in advance for any guidance !