AR Sponsor
Posted: 8/8/2009 3:44:25 PM EDT
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I just built my first AR. I have installed a rear iron sight for now. I want to get good with that before I go with a red dot or what ever I may choose later. I took it out and using the Military Zeroing technique of the special target at 25 yards to zero in for 300. I did well with that (30 of the 40 were in the black with one click up on the front sight ) My problem is that at 50 yards holding the same point I am consistently hitting high. I have not found any instructions for adjusting my site for 50 and 100 yards. I see marks 2 , 3, 4. Do those represent 200 yds etc? I have looked for detailed instructions for the adjustable sight and have not found anything useful yet. Any advise is appreciated.
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Quoted:
I just built my first AR. I have installed a rear iron sight for now. I want to get good with that before I go with a red dot or what ever I may choose later. I took it out and using the Military Zeroing technique of the special target at 25 yards to zero in for 300. I did well with that (30 of the 40 were in the black with one click up on the front sight ) My problem is that at 50 yards holding the same point I am consistently hitting high. I have not found any instructions for adjusting my site for 50 and 100 yards. I see marks 2 , 3, 4. Do those represent 200 yds etc? I have looked for detailed instructions for the adjustable sight and have not found anything useful yet. Any advise is appreciated. That's the problem with a 25 yard zero (which by the way does not give you a 300 yard/meter zero.) We need to know what rear sight you have to give specific advice, but you'll be better served using a 50 yard zero. |
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Here is a link to a picture of my rear sighthttp://picasaweb.google.com/Jvessels/BuildingAnAR#5367737450527309058.
When I was looking for help zeroing my AR, I found this technique recommended by a guy who used this in Iraq. ************** The USMC zeroes all weapons with the small rear sight aperture and adjusts for a 300 meter zero.
The USMC Operators Manual TM9- 1005-3 19-10 for the Ml 6A2/M4 defines the Battlesight Zero as the following: The front sight post and rear sight windage knob are adjusted so you can hit your point of aim at 300 meters. The unmarked aperture must be in the up position. (this refers to the small aperture) The 300-meter mark is aligned with the mark on the left side of the receiver. (8/3) On my Colt AR-15, a “z” can be found 2 clicks above the “6/3” setting. You must adjust your rear-sight elevation to this setting and use the small rear sight aperture (from now on this will be referred to as the “unmarked aperture” to be in compliance with the manual). With this setting, the rifle will achieve a point-of-aim, point-of-impact at 25 meters which achieves a 300 meter battlesight zero. To place your actual 300 meter zero on the rifle, rotate the rear sight elevation knob 2 clicks down back to “6/3.” Even if I zero at 50m, I still want to understand how to adjust or compensate for other distances. for instance if I am zeroed for 50m, then do I adjust my sight for 100m? or 25M? Or do I just compensate by aiming a little high or low. |
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Are you sure that's UTG, not LMT?
Once you zero your rifle at 50M, you will be able to use the same hold out to 200+ yards and aim slightly high at 300 yards. I can't find any range around here that is measured in "meters", so I just zero my rifles to hit 2.5" - 3" at 100 yards, which is dead on at 200 - 220 yards. |
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