Zeroing Process

During the zeroing process, all elevation adjustments are made on the front sight post. Once a BZO is established, the front sight post should never be moved, except when rezeroing the rifle. (The rear sight elevation knob is used for dialing in the range to the target.) Zeroing is conducted at a range of 300 yards/meters. To prepare a rifle for zeroing, the rifle sights must be adjusted to the initial sight settings as outlined in paragraph 9005. Perform the following steps to zero the rifle:

Fire a 3-shot group.

Triangulate the shot group to find the center. See figure 9-12.

Determine the vertical distance in inches from the center of the shot group to the center of the target. Make elevation adjustments on the front sight post to move the center of the shot group to the center of the target.

Determine the horizontal distance from the center of the shot group to the center of the target. Make lateral adjustments on the windage knob to move the center of the shot group to the center of the target.

i Repeat preceding steps until shot group is centered. i Fire a 4-round shot group to confirm sight setting.

Once the sight setting is confirmed, determine the value and direction of the wind and remove the number of clicks added to the windage knob (if necessary) to compensate for current wind conditions. This becomes the BZO setting for the rifle.

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