initial aiming point

initial aiming point

[i′nish·əl ′ām·iŋ ‚pȯint]
(ordnance)
Point on which a gun is sighted to establish a reference line from which direction angles for targets are measured; from this reference line, other aiming points that give the direction of the targets are measured off.
References in periodicals archive ?
His initial aiming point is one-yard outside the TE alignment.