Re: so i now know how to range using reticle - next?
Zero at 100 yards.
Shoot a group at 200 yards without moving the elevation knob. Measure the bullet drop, in inches, on the paper from point of aim to the center of the group. Divide by 2.094. The result is your actual bullet drop in MOA. Divide by 3.438 to convert the bullet drop to Mils.
Don't touch the elevation knob yet. Shoot a group at 300 yards using the same aiming point and measure again. Divide by 3.141. The result is your actual bullet drop in MOA at 300 with your 100 yard zero. Divide by 3.438 to covert to Mils.
Now you have your 200 and 300 yard dope, under the given conditions, with a 100 yard zero. Write it down. Now you can dial or hold for 200 and 300, your choice.