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Does a milliradian reticle design work using the holdover method? Yes and No. But first, let's review some "milliradian" facts.
Definition:
Radian describes the plane angle subtended by a circular arc the length of the arc divided by the radius of the arc. One radian is the angle subtended at the center of a circle by an arc that is equal in length to the radius of the circle. More generally, the magnitude in radians of such a subtended angle is equal to the ratio of the arc length to the radius of the circle. Read More...

This is a thread for discussion of the article,
What is a Mil (Mil Dot Reticle) and does it work as a "hold over" aiming method?, By Ward Brien. Here you can ask questions or make comments about the article.