Zero in a Eotech ( what range?)

[1lostinspace]

I have always 0 at 50 yards, at what range does the US army recommend to 0 in a reflex sight?

[tomd1584]

25 meters?

[barrym66]

Based on what a knowledgeable instructor taught at a carbine training class I attended, I zero all my AR optics at 100 yards....for a typical load and rifle, that equates to about 2.25" low at 25 yards, which I can deal with (combat accuracy LOL) if needed. (Not based on bullet drop, based on offset of barrel and optic center).

Zeroing beyond 100 yards makes little sense for most uses of a typical Eotech equipped type rifle, and if you are shooting beyond that you can always learn what to hold-over for the load you are shooting. If I remember right I held over 6" or so for a 16.5" barreled AR shooting M855 ammo at 300 yards.

Haven't shot it over 100 or so yards since. Not many places to do so around here!

[Lateralus]

I always zero at 100 yds.

Any more than that can be held over very easily. Remeber, the ring is 65 MOA. With a little math, you can easily judge different ranges in fractions of that ghost ring.

[SuperSet]

If your optic does not have a BDC, zero according to your height over bore, ammo and barrel length. For my EOTech XPS, I zero at 50y using 55gr SP which will take me out to 250Y with bullet impact ~2 inches.

Have you seen this chart for different zero trajectories for XM193?

[Vtec44]

Have you seen this chart for different zero trajectories for XM193?

Very nice chart. What barrel length was it based on? I typically zero my rifle in at about 50 yards to get out to 200 yards. I rarely shoot beyond 200 yards.

[SuperSet]

Here's the originating thread so it's a 16" barrel:

http://www.xdtalk.com/forums/ar-talk/118999-xm193-bzos-eotech-range-estimation-chart.html

[Spaceghost]

I am a 50 yard zero guy.

[tomd1584]

I am a 50 yard zero guy.

x2.

[CWUSCG]

I vote for a zero at 100 yds. that way you can always aim higher, if your targert is closer. We did that in training to get a feel for point of impact at targets within 100 yds. Or you could zero a few inches high at 100 yds, so you could be at center mass at 200-300 yds

[socal-shooter]

50 yard zero here w/my eotech

so its basically point of aim/point of impact out to 200/250 yards

which is a perfrect battlesight for the eotech imho

[Ruiner]

I use a 50 yard zero.

[OneSevenDeuce]

25 yds. That is more out of habit than out of any real knowledge that it is the better way to do things. The military always zeroes M16/M4s at 25, whether they have iron sights or reflex sights, so I'm just used to doing it.

[Maddog5150]

25 meter zero here. Thats what I've always been trained and you can even see with the chart that 100 meter zero will drop off sooner.