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AR15 zero

Vic,
Have you confirmed your zero at other than those ranges? If you haven't you could find the zero to be way off. Or you might get lucky (and without knowing your specific ammo's velocity, it is just luck!) and it's right on. Without actual testing and confirmation it's just a guess! If you change ammo, the zero is unlikely to remain valid, even if it's the same weight bullet. There are simply too many variables.
Cheers,
crkckr
 
Just went over this with my buddy and his new blaster this week.
I've tried 25, 37 and 50...they all work well, just depends how far you plan to shoot.
We zeroed his at 50 and he slaps steel at 200 pretty easy with a crappy 1-8x.
I think mine is zeroed at 37 and I go out to 300 with the same ease with an LPVO.

If I were to be running a typical DMR/SPR with a magnified optic,(2-10 or 3-18 etc) I'd probably just zero at 100.
 
Generally 50 (200) yards for an all purpose .223/5.56 AR15

Otherwise, if it's a hunting specific setup where I'll probably be using some sort of ballistic calculator or non .223 caliber, it makes more sense in my mind to just use a 100 yard zero.
 
Defensive 14-16" carbine I zero at 45yds, that keeps everything from 0-300 yds in a 5" circle. Tighter the closer you are obviously but aim center mass on human Its hard to miss if you do your part.
 
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