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Home > Ordnance Documents and other related manuals > > Figure 13. Gun Boresight Controls
Figure 12. Testing the Boresight Reticle.
Task 2. Describe the procedures for boresighting the 7.62mm coaxial machinegun

The M2/m3 Bradley Fighting Vehicle: Fire Control System
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M2/M3 BFV: FIRE CONTROL SYSTEM - OD1608 - LESSON 1/TASK 1
FIGURE 13.
GUN BORESIGHT CONTROLS.
(25) Remove  the  boresight  telescope  and  the  25mm  boresight
adapter from the 25mm gun  barrel.
This is done by pulling the
boresight telescope gently from the 25mm boresight adapter.
Then,
the 25mm boresight adapter and red streamer are pulled out of the
25mm gun barrel.
4.
Conclusion
The 25mm gun is the first of the five fire control system components
to be boresighted.
Once boresighting is completed on the 25mm gun,
the  other  weapons  and  sighting  devices  can  be  boresighted.
Generally, when the backup sight is to be boresighted, it is done
immediately after the 25mm gun.
If the backup sight is not being
boresighted  for  any  reason,  the  7.62mm  machinegun  is  boresighted
next.
In  any  event,  the  backup  sight  or  7.62mm  machinegun  are
boresighted on the same target as the 25mm gun, and the handwheels or
controls should not be moved after boresighting the 25mm gun until
these other components have also been boresighted.
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