Kestrel 4500 Horus (Ballistics) - Manual (Page 13)

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RemV – remaining velocity
RemE – remaining energy
ToF – time of flight
MaxO – maximum ordinate (highest point the bullet
reaches in flight)
Drop – total drop distance
Rtrns – range at which transonic velocity transition
begins
Rt 75% – distance at which a bullet is 75% through
the transonic range
Rsubs – range at which bullet velocity becomes
subsonic
Range Estimation Screen
Target – the size of the target on which estimation
is based
Image – the apparent size of the target as it appears
in a telescopic sight
Range – the calculated range, based on the target and
image sizes
Speed Estimation Screen
Range – the range at which the speed estimation
will be done
Mvmt – the apparent movement of the target as
it appears in a telescopic sight
Time – the time (in seconds) during which movement
was measured
Speed – the calculated speed, based on range,
movement and time
True Drop Screen
Range – the range at which test firing is being done
Drop – the elevation correction calculated for the
specified range
BC – the ballistic coefficient used in the current
elevation calculation
MV – the muzzle velocity used in the current elevation
calculation
Sight Adjustments
TMOA – true minute of angle
MIL – USMC mils