Reticle Manual
Mil Dot
Vortex Mil Dot Reticle
The Vortex Mil Dot reticle is an extremely versatile reticle allowing the user to do range estimations, holdover and wind drift compensation, as well as moving target leads.
Vortex Mil Dot Reticle
When used with second focal plane riflescopes it is very important to understand that in order to use the listed subtensions correctly, the scope must be set to a particular magnification (usually the highest). Consult the riflescope owner’s manual for the correct magnification to be used. Of course, the standard center crosshair can always be used at any magnification.
The mil dot reticle subtensions are based on the milliradian (mrad for short). Mrad unit of arc measurements are based on the radian. A 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. These angles and arc scales are used to estimate range and bullet trajectory drop with
the mil dot reticle. |
1 Mil Width at Distances |
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100 yards |
3.6 inches |
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There are 6.283 |
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200 yards |
7.2 inches |
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radians in a circle and |
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300 yards ----------------------- |
10.8 inches |
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1000 milliradians in |
400 yards ----------------------- |
14.4 inches |
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500 yards |
18.0 inches |
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a radian for a total |
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600 yards ----------------------- |
21.6 inches |
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of 6283 milliradians |
700 yards ----------------------- |
25.2 inches |
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(mrads) in a circle. |
800 yards ----------------------- |
28.8 inches |
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An mrad will subtend
3.6 inches at a distance of 100 yards. Most riflescopes with mrad adjustments use .1 mrad clicks which subtend .36 inches at 100 yards.
Vortex Mil Dot reticle
subtensions shown in milliradians (mrad or mils).
1
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