Using your S-TAC1-7X24 ILLUMINATED MIL-HASH RETICLE One Mil (MRAD) is equal to 10 centimeters at 100 meters. (3.6 Inches @ 100 yards) Mil based reticles allow you to range targets to determine distance. To determine the range of your target simply divide the height of the target in Mils divided by the Mils on the reticle x 100 meters. Example: Target Height 5 Mils Target on Reticle= 2 Mils x 100 Meters = 5 Mils 2 Mils x 100 Meters = 250 Meters Resetting your Turrets to Zero Your new S-TAC Series Scope is equipped with Tactical style Knobs. To reset your knobs to zero after sight in Simply hold the knob and remove the #20 Torx screw from the top of the windage or elevation knob by turning Counter Clockwise. Retighten after setting the knob to the Zero Mark. Do not over tighten. Data Valid for S-TAC1-7x24IRMH Only. All Values in Mils at 100 Meters. Magnification Dimension A Dimension B Dimension C Dimension D Dimension E Dimension F Dimension G Dimension H Dimension I Dimension J Left to Right Windage Bars in MIL MIL below center line MIL distance of spacing Diameter of W/E Centerline in MIL MIL distance of spacing Height and width of 5 MIL BARS Windage and Elevation Height and width of MIL BARS Windage and Elevation Center Dot Diameter in MIL MIL distance of spacing Height and width of 0.5 MIL BARS Windage and Elevation 1 2 3 4 5 6 7 140.000 105.000 17.500 0.875 14.000 14.000 7.000 2.100 3.500 3.500 70.000 52.500 8.750 0.438 7.000 7.000 3.500 1.050 1.750 1.750 46.667 35.000 5.833 0.292 4.667 4.667 2.333 0.700 1.167 1.167 35.000 26.250 4.375 0.219 3.500 3.500 1.750 0.525 0.875 0.875 28.000 21.000 3.500 0.175 2.800 2.800 1.400 0.420 0.700 0.700 17.500 17.500 2.917 0.146 2.333 2.333 1.167 0.350 0.583 0.583 20.000 15.000 2.500 0.125 2.000 2.000 1.000 0.300 0.500 0.500 VER: 2013-3