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Referring to Figure use the following sequence:
1. Set Ballistic Cam (BC) (1) on position 2 (200 Yards) by locking the
BC Lock Lever (BCL) (2) in the down position and turning it full CW
as viewed from above.
2. Lock out BC by placing the BC Lock (2) in the up position and run
the mount's Main Vertical Adjuster (MVA) (3) to its lowest setting by
turning it full CW, also.
3. Loosen the Windage Lock Screw (WLS) (4) and center the
mount's Windage Screw (WS) (5). Loosen and retighten the WLS
screw (4) after all windage adjustments. The mount is now posi-
tioned for initial sight in at 200 yards.
4. Using the following graduations sight scope in for 200 yard zero
utilizing only the mounts adjusters (MVA) (3) and (WS) (5).
Absolute zero may not be attainable with (MVA) (3) due to coarse-
ness of clicks, but get as close as possible.
Out to 200 Yards Engage BCL (2) and use the integral Ballistic Cam
to adjust elevation zero in 100 yard increments. Use scope's inter-
nal (turret) adjustments to fine tune.
Beyond 200 yards Disengage BCL (2) and use Mount's MVA (3) to
acquire range. Fine tune using scope's internal adjustment.
3.2.9. RETIClE PATTERNS
The ATN OTS-17 does not have a field user on/off button to acti-
vate the aiming reticle. To change the pattern contact to the service
center.
Small cross
Circle with a dot
Big cross
Big dot
Figure 3-6. Reticle Pattern
Cross with dot
Corner pieces
Circle
Scope
3-7
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