to visually bore sight a rifle
- Place the rifle solidly on a rest and remove the bolt.
- Align the sight through the bore over a target approximately 100 yards away.
- Move the rifle and rest until the target is visually centered inside the barrel.
- With the target centered in the bore, make windage and elevation adjustments until the reticle crosshair is also centered over the target.
- If using a mechanical or laser boresighter, set up according to
manufacturer instructions.
Final Range Sight-In
Once the riflescope has been boresighted, final sight-in should be done at the range shooting the same ammunition expected to be used in the field. 100 yards is the most common zero distance, although a 200 yard zero may be preferred for long distance applications.
- Be sure to follow all safe shooting practices.
- Before shooting, be sure the reticle and rear focus are properly set
- At your preferred zero distance, fire a three-shot group as precisely as possible. Next, adjust the reticle to match the approximate center of the shot group. If the rifle is very solidly mounted and has not shifted you can simply look through the scope and adjust the reticle until it is centered on the fired group.
- Carefully fire another three-shot group and see if the bullet group is centered on the bullseye. Repeat process until group is centered in desired spot.