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Old 09-27-2011, 11:10 AM
TrashmanNYC TrashmanNYC is offline
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Join Date: Apr 2011
Location: Long Island, NY
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Quote:
Originally Posted by MPDC View Post
Sight in the rifle using the iron sights. Adjust the red dot to absolute co witness (dot exactly at the top of the iron sight front blade). BOTH should now be zeroed the same. IF the red dot won't co witness the iron sight, it is lacking enough adjustment for your application or is not a quality sight.

You should always be able to co witness one to the other IF one is accurately sighted in. Most sights are corrected for parallax so consult your manual since this is dependent on the height of the mount.

IF you want a simple method for 25 yards, shoot a group of three rounds into a BIG target. Then, adjust the sight to the center of the group. Correct for other distances using a chart that relates to the ammo used. OR re shoot at 50 or 100 and again adjust the sight to the center of your group. Simlest way to do it IF you have a spotting scope or other means of seeing the target clearly. Easier than fiddling with adjustments to hit the center or bullseye, IMHO.
Any recomendations for a red dot sight to use co-witness on my m&p 15 sport? Preferrably less than $200.
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