Definitions of The Angular Mil
There are 2000π milliradians (≈ 6283.185 mrad) in a circle; thus a milliradian is just under of a circle, or ≈ 3.438 minutes of arc. Each of the definitions of the angular mil are similar to that value but are easier to divide into many parts.
- 1⁄6400 of a circle in NATO countries.
- 1⁄6283 The “real” trigonometric unit of angular measurement of a circle in use by telescopic sight manufacturers using (stadiametric) rangefinding in reticles.
- 1⁄6000 of a circle in the former Soviet Union and Finland .
- 1⁄6300 of a circle in Sweden. The Swedish term for this is streck, literally "line". Sweden (and Finland) have not been part of NATO nor the Warsaw Pact. Note however that Sweden has changed its map grid systems and angular measurement to those used by NATO, so the "streck" measurement is obsolete.
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