I have a basically brand new Vortex Viper 6-20x44 PA, it has the wide duplex. Wide duplex does not mean a heavy duplex, just wider center crosshair, just FYI
Scope sat on my F Class 260 for exactly 195 rounds, gun weighs 18 pounds. The only reason I'm selling is I wanted more magnification. Scope is great, tracked all three 300,500,600 matches excellent. Shot from 570-580's with it, but again these were my first f class matches, and this is with a factory repeater savage action
These have a nice crosshair, would compare to about a leupold, much finer than my zeiss conquest.