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I zeroed my red dot at 50 meters instead of the recommended 25.

Posted By: tenyearsgone

I zeroed my red dot at 50 meters instead of the recommended 25. - 04/05/15 12:13 AM

What can I estimate the trajectory to be at 100 with a 55 grain 5.56? The range wouldn't let me use the 25.
Posted By: QuitShootinYoungBucks

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/05/15 02:27 AM

I ran it with your red-dot mounted 2" above bore and 3240 fps and BC of .269. At that you should be 1.1 inches high at 100 yds with a zero at 50 yards.
Posted By: Beaubien

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/05/15 02:30 AM

Deleted misread the question
Posted By: patriot07

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/05/15 03:37 AM

Depends on the height difference between your bore and scope. But you should be around an inch high at 100 yards if we're talking an AR. I always zeroed my AR with an EOTech at 50 yards because it was close to being a 200 yard zero as well. Not sure why you'd zero it at 25?
Posted By: tenyearsgone

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/05/15 06:02 AM

Originally Posted By: patriot07
Depends on the height difference between your bore and scope. But you should be around an inch high at 100 yards if we're talking an AR. I always zeroed my AR with an EOTech at 50 yards because it was close to being a 200 yard zero as well. Not sure why you'd zero it at 25?


Aimpoint's spec but I'm open to ideas. It's the Larue mount with a micro.
Posted By: tenyearsgone

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/05/15 06:03 AM

Originally Posted By: QuitShootinYoungBucks
I ran it with your red-dot mounted 2" above bore and 3240 fps and BC of .269. At that you should be 1.1 inches high at 100 yds with a zero at 50 yards.


Thanks!
Posted By: patriot07

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/05/15 01:25 PM

Originally Posted By: tenyearsgone
Originally Posted By: patriot07
Depends on the height difference between your bore and scope. But you should be around an inch high at 100 yards if we're talking an AR. I always zeroed my AR with an EOTech at 50 yards because it was close to being a 200 yard zero as well. Not sure why you'd zero it at 25?


Aimpoint's spec but I'm open to ideas. It's the Larue mount with a micro.
Got it. I think I'd stick with the 50-yard zero if it was me. How high would you be at 100 yards with a 25-yard zero? More than an inch I think. That's the problem with a zero at a distance that short.
Posted By: QuitShootinYoungBucks

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/05/15 02:20 PM

Curious, were you indoors? What range wouldn't let you shoot at 25?
Posted By: tenyearsgone

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/05/15 11:13 PM

Was outdoors at a very large range that goes up to 600.
Posted By: tenyearsgone

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/05/15 11:14 PM

Originally Posted By: patriot07
Originally Posted By: tenyearsgone
Originally Posted By: patriot07
Depends on the height difference between your bore and scope. But you should be around an inch high at 100 yards if we're talking an AR. I always zeroed my AR with an EOTech at 50 yards because it was close to being a 200 yard zero as well. Not sure why you'd zero it at 25?


Aimpoint's spec but I'm open to ideas. It's the Larue mount with a micro.
Got it. I think I'd stick with the 50-yard zero if it was me. How high would you be at 100 yards with a 25-yard zero? More than an inch I think. That's the problem with a zero at a distance that short.


About 4 inches.

A 25 yard zero is supposed to be right on at 275, but wouldn't really call that an ideal situation. Seems like I ended up doing better for what I wanted.
Posted By: Payne

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/05/15 11:53 PM

Did you use the zeroing targets?

http://www.aimpoint.com/us/handling/zeroing-targets/

I sighted in my compM4 at 5o yards and it's still minute of pig at 200 yards.
Posted By: bobsumner

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/06/15 01:24 PM

Originally Posted By: Payne
Did you use the zeroing targets?

http://www.aimpoint.com/us/handling/zeroing-targets/

I sighted in my compM4 at 5o yards and it's still minute of pig at 200 yards.


This is the correct answer. Works MOP/MOD on 55/62gr loads.
Posted By: bside

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/13/15 05:35 PM

https://www.youtube.com/watch?v=g9oXGT55cV8
Posted By: passthru

Re: I zeroed my red dot at 50 meters instead of the recommended 25. - 04/14/15 11:45 PM

Mine is zeroed at 50 as well and is just over an inch high at 100.
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