SpecterOS4x Operation Manual
Page 11
3.4.1.2
ELEVATION: Disengage the elevation zero lock by pushing it up.
Ensure that the lock is fully disengaged from the elevation dial.
3.4.1.3
Rotate the range dial clockwise or counter clockwise until the main housing and clamping plate
are approximately parallel.
3.4.1.4
Re-engage the zero lock by moving it back down fully.
3.5 Zeroing
Zeroing should be performed at 100 meters.
It is recommended that the marksman fires three-round
groups and make adjustments based upon the estimated geometric centre of those groups.
3.5.1
(Figure 3-1, 3-2) The process for zeroing is depicted in the following illustrations and descriptions.
3.5.2
To move the MPI (Mean Point of Impact) to the left, rotate the windage shaft clockwise.
To move the MPI (Mean Point of Impact) to the right, rotate the windage shaft counter clockwise.
Figure 3-1. Azimuth (Windage) Zeroing Adjustment
