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Page AR-15 » Optics, Mounts, and Sights
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Archived [ARCHIVED THREAD] - aimpoint zero .308
Posted: 3/19/2006 11:59:52 AM EDT
I know for .223, 50 yards is the ideal zero, but I have sinced moved my reflex sight onto a .308 FAL, what is the optimum zero for that caliber?

Link Posted: 3/19/2006 1:15:59 PM EDT
[#1]

I had one on an AR10 for a while and 50 yards worked just fine.

Link Posted: 3/19/2006 1:20:49 PM EDT
[#2]
would you happen to know how much POI shifts at 25,100,150, etc yards with that zero? It is 4 moa, is the round within the dot at those distances?

Link Posted: 3/19/2006 3:15:29 PM EDT
[#3]
Quoted:
would you happen to know how much POI shifts at 25,100,150, etc yards with that zero? It is 4 moa, is the round within the dot at those distances?


I use a ballistics calculator to determine the holdover/under at various distances (and work out optimal zero distance for a reddot. Optimal meaning maximum zero distance with minimal cross over above line of sight).

www.realguns.com has a good external ballistics calculator.
groups.msn.com/TheMarylandAR15ShootersSite/ the MD AR shooters' site has a very nice excel based external ballistics calculator in their documents section.

Archived [ARCHIVED THREAD] - aimpoint zero .308
Page AR-15 » Optics, Mounts, and Sights
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