EOTech ATPIAL (AN/PEQ-15) - ADVANCED TARGET POINTER ILLUMINATOR AIMING LIGHT - Manual (Page 36)

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2.6 ZEROING PROCEDURES
NOTE
The boresight adjusters move the aiming beams at
the rate of approximately 0.2 mrad per click. Two
clicks = 1 box on a standard 25-meter zeroing
target.
After establishing the factory preset or boresighting the
ATPIAL / weapon combination, the ATPIAL may be zeroed
to the weapon via live fire at a 25-meter range as described
below. Table 2-7 provides target offsets that must be
applied to the 25-meter zeroing target. Refer to Tables 2-1,
2-2, and 2-3 for adjuster rotation and resultant direction of
shot group movement.
NOTE
Direct sunlight may hinder the ability of the user to
effectively see the Visible Aim Laser on the target.
1. On a 25-meter zeroing target, mark the designated strike
point and designated strike zone for the weapon being
used (see Table 2-7).
2. Mount the target on an “E” silhouette or other suitable
surface at 25 meters.
3. Mount the ATPIAL to the weapon.
4. Rotate the Mode Selector to Visible Aim Low (VIS-AL)
position.
5. Activate the Visible Aim Laser in continuous mode by
double-tapping the FIRE Button.
6. Direct the Visible Aim Laser at the center of the target.