The SCR Mil reticle is ideal for precision competition use. With its extended illumination area, you can engage targets at long distances even in low light.1/2-mil holdover lines2/10-mil and 1-mil windage hold-off lines for precision1/10-mil ranging brackets on the crosshairs, at the top, left, and right extremesExtended center illumination area lets you engage targets at long distances in low light and shadowsFront focal plane design means trajectory compensation and wind hold-off references are accurate at any magnificationIncreases speed and precision for wind hold-off and for range estimation and impact measurement Burris 30x WA Spotter Eyepiece, SCR Mil