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Bearing
From ARRSEpedia
Several meanings, but the usual one in military terms is the direction from one thing to another.
I know that's a bit vague, but there are several versions ......
A bearing is usually measured in degrees or mils, from a reference point such as North.
Map Bearing
The direction from one point to another relative to the North used by that map. If using an Ordnance Survey map of the UK, this is the Universal Tranverse Mercator (UTM) projection.
Compass Bearing
The direction of an object or feature measured relative to the magnetic pole by use of a compass. This can be converted to a Map Bearing by addition/subtraction of the appropriate Grid Magnetic Angle for that map sheet and region.
In artillery terms, a bearing can be the direction the gun is pointed to hit the target. This is calculated by the Command Post Officer and CP team.
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