trouble boresighting nikon monarch
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Are you using a one-piece base or a 2-piece base?
If a one-piece with the dovetail front and 2-screw rear rings, you should get coarse windage adjustment with the screws on the rear ring and then the turret adjustment to refine it.
If 2-piece base mounts, are you sure the factory screw holes are aligned with the center of bore and barrel? Just because it came tapped from the factory doesn't necessarily mean they were drilled properly.
Did you center the reticle of the scope prior to mounting? If new in the box, it should be fairly well centered from the factory. If taking from one firearm to another, it should be re-centered and then adjusted.
If scope reticle was centered and then ajdusted to maximum limits and the adjustment knob turned past the limit, the adjustment may be damaged.
Finally, did you use a ring alignment kit to verify the scope rings were in alignment before installing the scope? If not and the rings aren't aligned, you've now got a bent tube.
If a one-piece with the dovetail front and 2-screw rear rings, you should get coarse windage adjustment with the screws on the rear ring and then the turret adjustment to refine it.
If 2-piece base mounts, are you sure the factory screw holes are aligned with the center of bore and barrel? Just because it came tapped from the factory doesn't necessarily mean they were drilled properly.
Did you center the reticle of the scope prior to mounting? If new in the box, it should be fairly well centered from the factory. If taking from one firearm to another, it should be re-centered and then adjusted.
If scope reticle was centered and then ajdusted to maximum limits and the adjustment knob turned past the limit, the adjustment may be damaged.
Finally, did you use a ring alignment kit to verify the scope rings were in alignment before installing the scope? If not and the rings aren't aligned, you've now got a bent tube.
Joined
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7,850 Posts
What I've been doing with mine is:
after making sure the rings are aligned (as Kdub suggested), installing the scope with only the bottoms of the rings installed. Then, sight the scope in on something about 50 to 75 yards distant. Rotate the scope 180 degrees. Adjust the windage and elevation (and keep rotaing/adjusting) until rotation of the scope has no (or little) bearing on where the reticle aligns on the target. I believe this is what Kdub s referring to in centering the reticle. Whether it is or not, it's what I do. I think it was my Nikkon or Bushnell instructions that taught me how to do this.
If you're using rings that don;t allow you to install just the bottoms, then you can use a narrow box (scope box) with "V" notches cut into each side. Lay the scope across the notches and rotate it, adjust, rotate, adjust, until you like it.
Anyway, once the rings are aligned and lapped if necessary, and the scope reticle is centered, you should be able to boresight it and then fine tune it at the range.
after making sure the rings are aligned (as Kdub suggested), installing the scope with only the bottoms of the rings installed. Then, sight the scope in on something about 50 to 75 yards distant. Rotate the scope 180 degrees. Adjust the windage and elevation (and keep rotaing/adjusting) until rotation of the scope has no (or little) bearing on where the reticle aligns on the target. I believe this is what Kdub s referring to in centering the reticle. Whether it is or not, it's what I do. I think it was my Nikkon or Bushnell instructions that taught me how to do this.
If you're using rings that don;t allow you to install just the bottoms, then you can use a narrow box (scope box) with "V" notches cut into each side. Lay the scope across the notches and rotate it, adjust, rotate, adjust, until you like it.
Anyway, once the rings are aligned and lapped if necessary, and the scope reticle is centered, you should be able to boresight it and then fine tune it at the range.
Joined
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1,398 Posts
Relative simple to center the reticle in scope by placing the scope objective against a mirror. Look into the scope and you will see the recticle cross hairs and there reflection off the mirror. Use the elevation and windage knobs to bring them together. Very simple proceedure and it works!!
Joined
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1,012 Posts
+1 ...been doing it that way for some time now. fast and easy!
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