Newbie question

[xjtwo]

I am running an AimPoint M2 followed by an EOtech 3x.
I've taken it to the range a few times, the first time only with the AimPoint and it seemed pretty accurate.
The second time i tried the EOtech 3x and couldn't get use to it, didn't seem as accurate. So I took it off and tried to zero the Aimpoint itself, do you guys zero using the front sight or just by the dot itself?
Also, once it has been zeroed would I have to re-zero it if I decided to use the 3x?
I did use a different brand of a rounds the second time so maybe that had a factor? Went from a 5.56 NATO to a Wolf .223.........

Cheers,
J

[defender4life]

the Aimpoint is its own aiming system, so you just zero it with out the front A frame. Did you buy the spacer to rase it over the front A frame?
once the Aimpoint is zeroed you will not have to do a rezero with the 3X.
and everytime you switch ammo you will have to rezero.

[BadShot]

You've got a few choices with these types of optics.

1. Absolute Co-witness: Irons align with the red dot

Pro: Fast transitions between the optic and the iron sights because of the same plane alignment and holding the same cheek weld and sighting

Con: The irons can be considered in the way and "cluttering" the sight picture. This can be resolved with flip down front and rear sights.

2. Lower 3rd Co-witness: Iron sights are visible in the lower third of the optics field of view.

Pro: Reduces field of view "clutter" while allowing for fast transition to iron sights

Con: Seem more folks who are new to AimPoint and EOTech like optics find this to be a difficult arrangement at first. The setup still retains some "clutter" in the field of view.

3. Over the irons: The optic is raised above the irons sight plane using spaces or riser bases.

Pro: Uncluttered view

Con: The optic is now that much higher above the bore and may cause some elevation adjustment issues at longer distances. Can cause the shooter to radically shift cheek weld to use the irons if needed. This detracts from consistency and requires additional training efforts to transition effectively between the two sighting systems.

When utilizing a magnifier, most don't even notice the front sight in the field of view. That's an optical trick common with higher magnification. I've read some folks posting that they don't want anything in the field of view except the red dot or reticule. That's a personal preference. Personally the front sight post doesn't bother me in the least and by preference I like having absolute co-witnessing where and when possible. Over all this is easier done with AimPoint optics rather than EOTechs, so you have a lot of options.

You should not need to re-zero when engaging the magnifier. You will however see differences between bullet weights and need to get your data down to know how to adjust rather than constantly re-zero'ing your sights. With the velocity and typical bullet weight differences between 5.56 and .223, you will either have to learn to hold over or re-zero.

Personally I'd find a type of ammo that is reliable in your weapon and stick to that as much as possible, or get your data for that and have it available if you're going to do what most of us do.. stash the good stuff and plink with the crap (wolf for example).

There is a lot more out there by the way of detailed write ups on using the AimPoint that what we're giving you here, but hopefully this helps.

[xjtwo]

Thanks for all the info............

I like the Co-witness set up, I tried it with the rear sight but it was getting in the way so I think I'll need to invest in a better set up, like a flip up. The front sight didn't bother me at all.

So do you use the front sight at all in a Co-witness set up or just look completly past it?

Thats a great idea on documenting which ammo does what. I'll use your idea on setting zero with the good stuff and get a better idea of what the cheap (wolf) ammo does and compensate accordingly.

Again, thanks for all the info!

[defender4life]

with the Aimpoint you just look over and past the A-Frame. it has nothing to do with eather iron sight. the Iron sights are now your secondary if your Aimpoint goes down. the best back-up iron sights i have ever used are the YHM flip ups, their about $80 each.