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#5684564 - 04/04/15 07:13 PM I zeroed my red dot at 50 meters instead of the recommended 25.
tenyearsgone Offline
Pro Tracker

Registered: 04/21/13
Posts: 1213
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.

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#5684710 - 04/04/15 09:27 PM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: tenyearsgone]
QuitShootinYoungBucks Offline
THF Trophy Hunter

Registered: 11/01/12
Posts: 6452
Loc: Lubbock, TX
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.
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#5684712 - 04/04/15 09:30 PM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: tenyearsgone]
Beaubien Offline
Bird Dog

Registered: 02/18/15
Posts: 473
Loc: In the mountains east of ABQ
Deleted misread the question


Edited by Beaubien (04/04/15 09:31 PM)
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#5684770 - 04/04/15 10:37 PM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: tenyearsgone]
patriot07 Offline
Tracker

Registered: 11/06/11
Posts: 947
Loc: Royse City, TX
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?

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#5684828 - 04/05/15 01:02 AM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: patriot07]
tenyearsgone Offline
Pro Tracker

Registered: 04/21/13
Posts: 1213
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.

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#5684829 - 04/05/15 01:03 AM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: QuitShootinYoungBucks]
tenyearsgone Offline
Pro Tracker

Registered: 04/21/13
Posts: 1213
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!

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#5684917 - 04/05/15 08:25 AM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: tenyearsgone]
patriot07 Offline
Tracker

Registered: 11/06/11
Posts: 947
Loc: Royse City, TX
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.

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#5684964 - 04/05/15 09:20 AM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: tenyearsgone]
QuitShootinYoungBucks Offline
THF Trophy Hunter

Registered: 11/01/12
Posts: 6452
Loc: Lubbock, TX
Curious, were you indoors? What range wouldn't let you shoot at 25?
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#5685621 - 04/05/15 06:13 PM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: tenyearsgone]
tenyearsgone Offline
Pro Tracker

Registered: 04/21/13
Posts: 1213
Was outdoors at a very large range that goes up to 600.

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#5685625 - 04/05/15 06:14 PM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: patriot07]
tenyearsgone Offline
Pro Tracker

Registered: 04/21/13
Posts: 1213
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.

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#5685666 - 04/05/15 06:53 PM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: tenyearsgone]
Payne Offline


Registered: 07/27/07
Posts: 16602
Loc: South of I-10
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.
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#5686198 - 04/06/15 08:24 AM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: Payne]
bobsumner Offline
Woodsman

Registered: 09/03/13
Posts: 180
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.

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#5697591 - 04/13/15 12:35 PM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: tenyearsgone]
bside Offline
Bird Dog

Registered: 06/10/14
Posts: 314
Loc: DFW

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#5700134 - 04/14/15 06:45 PM Re: I zeroed my red dot at 50 meters instead of the recommended 25. [Re: tenyearsgone]
passthru Offline
THF Celebrity

Registered: 12/05/06
Posts: 10868
Loc: Saginaw, Tx
Mine is zeroed at 50 as well and is just over an inch high at 100.
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