SpecterOS4x Operation Manual
Page 12
Figure 3-2. Elevation Zeroing Adjustment
3.5.3
To Zero Elevation;
Disengage the elevation zero lock by lifting it up.
Be sure that the lock pin
is fully disengaged from the elevation zeroing dial.
The elevation adjust will now rotate. With the lock
disengaged, rotate the elevation zeroing dial to the left to move the MPI down; or to the right to move the
MPI up.
RANGE IN METRES
MPI MOVEMENT IN
mm PER CLICK OF
ADJUSTMENT
MPI MOVEMENT IN INCHES
PER CLICK OF ADJUSTMENT
AZIMUTH or ELEVATION
(
½
MOA )
AZIMUTH or ELEVATION
(
½
MOA )
25
50
100
200
300
400
500
600
700
800
4
7
15
29
44
58
73
87
102
116
0.1
0.3
0.6
1.1
1.7
2.3
2.9
3.4
4.0
4.6
Table 3-3 MPI Movements for each Click of Sight Adjustment
