Eotech zero

itchy300

Where should I zero my eotech? I may do some hunting with it and am kind of curious what y'all think. I'll shoot 55gr only for right now.

charliemeyer007

A shot in the dark. A 55 gr flat base spire point at 3000 FPS MV with 1.5 inches above the bore. For 200 yards zero it will be 2" high at 100, 9" low at 300, 27" low at 400 and 58" low at 500.

itchy300

What will it be at 25, 50, 75 yds?

NeoBlackdog

What kind of shots are you expecting? If you're using it in dense timber you're probably fine zeroing at fifty or 100. If you hunt more open areas then you'll want to stretch it out. Imagine what the average shot in the area you're hunting will be and zero for that.

Be aware that the Eotech has 0 magnification so the further away an animal is, the harder it will be to make a clean and humane kill.
I have an AR that I set up for hunting cats & coyotes and opted to go with the Leupold Mark AR in 3x9.

charliemeyer007

My shot in dark was assuming a 223 Remington using the common loading of a 55 grain bullet in a rifle.

A nice program to run the numbers.
http://www.hornady.com/ballistics-resource/ballistics-calculator

Loading data to help estimate MV.
http://data.hodgdon.com/main_menu.asp

itchy300

Thank you Charlie, that's what I needed.

beantownshootah

quote:Originally posted by itchy300
Where should I zero my eotech? I may do some hunting with it and am kind of curious what y'all think. I'll shoot 55gr only for right now.


Depends mostly on WHAT you are hunting (ie deer? Prairie dogs?) and at what anticipated distances.

Making a bunch of assumptions here, presumably you're talking about a .223 Remington (maybe an AR-15 type gun) and a standard Eotech, which uses a non-magnified holographic reticle.

If that's your chosen sight, you're probably intending to keep distances relatively short. (IE if you wanted to take LONG shots, you'd want some magnification).

So assuming that you're keeping your shots at relatively close ranges of 100 yards or less, then you could just zero your sight at 100 yards and be done with it. That will give you about a 3" bullet drop at 200 yards, and any further than that, and you probably "shouldn't" be hunting with just a standard dot sight!

Alternatively, you could use a standard "battlefield" zero at 200 yards, which will put you about 1" high at 100 yards and about 2" low at 300. So that's basically a "dead hold" from muzzle out to 300 yards, and again, that "should" be good enough for any reasonable hunting with a dot sight, plus you could use the same zero for combat, should you decide that your rifle is "dual use". [;)]

Txs

I don't know if this applies to whatever rifle you'll be mounting that sight on, but I use a 50 yd. zero with my defensive use, non-magnified EoTech/16 in. barrel AR combination.

With the sight mounted so far above the bore the bullet's upward arc this setting puts it dead on at 50 yds, 2 in. high at 100 yds, then dead on again at 200 yds. during the downward portion of it's arc.

bigoutside

quote:Originally posted by Txs
I don't know if this applies to whatever rifle you'll be mounting that sight on, but I use a 50 yd. zero with my defensive use, non-magnified EoTech/16 in. barrel AR combination.

With the sight mounted so far above the bore the bullet's upward arc this setting puts it dead on at 50 yds, 2 in. high at 100 yds, then dead on again at 200 yds. during the downward portion of it's arc.


10 ring.
This is the correct answer.