I was only planning on using my irons regardless of the distance - Redneck - I can go out with you to sight in your rifle. I've got some 25 meter targets to sight at, if it is an AR, with a standard ghost rings, you sight in at 25 with 0-2 and flip to the smaller ring to be dead on at 300.
Let me see if I can find you a manual of some sorts.
found it!
http://www.armystudyguide.com/content/army_board_study_guide_topics/m16a2/zero-and-m16a2-rifle.shtml
Let me see if I can find you a manual of some sorts.
found it!
http://www.armystudyguide.com/content/army_board_study_guide_topics/m16a2/zero-and-m16a2-rifle.shtml