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6/5/2006 6:27:24 PM EDT
I’ve been having some elevation issues with my EOTech model 512 revF, I have it mounted directly on top of my receiver. When I took it out of the box I gave it 4-5 clicks down because it shot about a foot high at 100 yards. This time it was doing the same thing so I clicked it down at least 10 times and still a foot high at 100 yards, what’s the problem with my EOTech? Or is it something I’m doing wrong?
6/5/2006 6:34:40 PM EDT
[#1]
I can't say for sure what your problem is but I had to adjust mine quite a bit out of the box.

I initially just adjusted it at home to co-witness with my irons and then when I got out to the range I only had to make a few minor adjustments from there.......but it took quite a few rotations to get the dot to co-witness the irons.

Good luck and sorry I didn't answer your question.....I'm sure people with more knowledge than I will chime in soon.

6/5/2006 6:41:36 PM EDT
[#2]
What value are the clicks on the sight?  We have to know that before we can do anything.

Cheers,

Phil
6/5/2006 6:51:04 PM EDT
[#3]
Right off hand I don’t know but I’m sure we have an EOTech expert or two around here, I’m hoping Stickman will stop in and help
6/5/2006 6:55:07 PM EDT
[#4]
Is is mounted tight?  Are you SURE you are not adjusting the elvation knob?  Are you SURE that you are adjusting the knob the correct way?
6/5/2006 6:55:22 PM EDT
[#5]
out of the box my eotech was shooting really low
i had to raise it like 30 clicks
6/5/2006 7:00:32 PM EDT
[#6]
Then I might be doing ok but after the 20th click I figured something was very wrong, maybe not
6/5/2006 7:21:36 PM EDT
[#7]

Quoted:
Right off hand I don’t know


You don't know yet your clicking away?  Did you read the instructions?  Page 5 of the manual indicates each click os 0.5 MOA.

So at 100y, if the sight was off by a foot (I'll assume you measured) then you would have needed 24 clicks to bring it to zero.
6/5/2006 7:58:15 PM EDT
[#8]

Quoted:
I initially just adjusted it at home to co-witness with my irons and then when I got out to the range I only had to make a few minor adjustments from there.......but it took quite a few rotations to get the dot to co-witness the irons.



This is probably the easiest way to get the sight close to zero. Should only need some fine tuning at the range.

Your opens are zeroed, right?
6/5/2006 11:10:06 PM EDT
[#9]
Yeah their right on. Next time I go back I'll just crank her 20 times more.
6/5/2006 11:49:30 PM EDT
[#10]
When I got my eotech it was shooting very off center so I zeroed it. But it did not stay zeroed because I did not have it torqued down enough (read manual before doing such) and it would shift when the gun recoiled. I tightened it up with a torque wrench and it kept its zero.
6/6/2006 2:33:41 AM EDT
[#11]
Mine was off at least that much. If you were sighting at 100 yards and Stickman said it takes 20 at 100 yards...then it would take 4 times that to move it down at 25 yards. I know I had to move mine quite a bit as it was over a foot high at 25 yards.
JRandyH
6/6/2006 5:41:45 AM EDT
[#12]
I was also bothered by the number of clicks that it took to zero because I never had to adjust a scope this much but then I visited EoTech's web site and read their FAQ.

The EoTech has 80 MOA adjustment in both axis (up & down, right & left).  Each click is .5 MOA so that means it has 160 clicks in each plane.  That is a lot more than my scopes.

Having to adjust it 20-30 clicks isn't as much out of 160.

I am not sure what EoTech use as a basis for their initial setting but it is consistent.  I have a model 551 and a 552 and they both had to be adjusted nearly the same amount of clicks for zero
6/6/2006 5:55:40 AM EDT
[#13]

Quoted:
Mine was off at least that much. If you were sighting at 100 yards and Stickman said it takes 20 at 100 yards...then it would take 4 times that to move it down at 25 yards. I know I had to move mine quite a bit as it was over a foot high at 25 yards.
JRandyH



Uh, no. If he's off 12" at 100 yards than he should only be off 3" at 25. Same amount of clicks.
6/6/2006 7:31:13 AM EDT
[#14]
You should be zeroing at 50 yards though, not 100.
6/6/2006 9:47:48 AM EDT
[#15]
I put a 551 eotech on my M4 lmt

it was almost already zero just shot a little low at 50 and dead center
6/6/2006 9:59:02 AM EDT
[#16]

Quoted:
I can't say for sure what your problem is but I had to adjust mine quite a bit out of the box.

I initially just adjusted it at home to co-witness with my irons and then when I got out to the range I only had to make a few minor adjustments from there.......but it took quite a few rotations to get the dot to co-witness the irons.

Good luck and sorry I didn't answer your question.....I'm sure people with more knowledge than I will chime in soon.




Same here.
6/6/2006 10:38:23 AM EDT
[#17]
Probably gonna have to crank it some more. Mine was a foot high and almost a foot right at 50 yds. Now its dead on but I had to click it a LOT
6/6/2006 10:47:21 AM EDT
[#18]
I know nothing about Eotechs, although I'm preparing to purchase one, but my Aimpoint needed a lot of vertical adjustment when I installed it - until I discovered the 1/4, 1/2, and full spacers.  The 1/4 spacer got me back to "zero" in the center part of the scope, rather than in the top-half.

flcracker
6/6/2006 1:28:09 PM EDT
[#19]

Uh, no. If he's off 12" at 100 yards than he should only be off 3" at 25. Same amount of clicks


Yeah you misunderstood my answer. I was saying if he was a foot at 100 vs a foot a 25 yards the clicks would be quadrulpled.
JR
6/6/2006 3:26:01 PM EDT
[#20]

Quoted:
I’ve been having some elevation issues with my EOTech model 512 revF, I have it mounted directly on top of my receiver. When I took it out of the box I gave it 4-5 clicks down because it shot about a foot high at 100 yards. This time it was doing the same thing so I clicked it down at least 10 times and still a foot high at 100 yards, what’s the problem with my EOTech? Or is it something I’m doing wrong?



EOTech adjusts every sight on a colimator at the factory before packing them in a box.  They are adjusted to a point in the mid-range of their vertical and horizontal travel.  There is plenty of adjustment range in any direction to zero the sight regardless of the weapon you mount it on.

A few weeks ago, I mounted an EOTech on a H&K UMP and it was dead nuts zero at 25 meters without having to make any adjustment.  However, one time I have mounted EOTechs on eight Diemaco C7s and found that they all were hitting about 1 meter high at 100 meters and needed considerable adjustment in elevation to bring them down on the target.   A lot has to do with the weapon you mount it on.  All guns shoot to a different point of aim.

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