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Thread: Quick Chevron optic question

  1. #1
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    Quick Chevron optic question

    Borrowed an optic from soneone nice enough to loan it to me a couple of days. I think I will be buying a sight with a chevron/triangle shaped "dot"

    Anyway - My understanding is that a 50 yard zero on a 5.56/.223 rifle crosses back down and is accurate again at 200 yards.

    If I zero the point of the triangle at 50 yards... Between the 50 and the 200 yard, the round will hit just a little high of the triangle point, right? Like, at 100 yards, it would be just a tiny bit higher than the point?

    And at less than 50 yards, I'd just cover the target with the complete triangle, right?

  2. #2
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    Quote Originally Posted by ShipWreck View Post
    Anyway - My understanding is that a 50 yard zero on a 5.56/.223 rifle crosses back down and is accurate again at 200 yards.
    More often, closer to 200m (219yd). This will vary due to barrel length, twist rate, ammo used, height of the sight over the bore. That's a huge part of why folks are heavily encouraged to confirm desired zero at true desired zero distance, if one has a venue capable of doing so. Many do not, and have no choice but to do a grouping exercise at a closer range and call it as good as can possibly be achieved.

    For example, mine zeroed @50yd, are smack-dab POA/POI @205m. I left them there, and have shot them so that I know where I'll print at other distances.

    Anyway, yes, you've essentially got the gist of that zero type and how it performs; WAY more to be found for that and other zeros, and the holds one should be prepared for, in the following thread: https://www.m4carbine.net/showthread.php?t=65679

    At ranges inside 50yd, you'll want to hold high for small/low-percentage targets. +/- 2" @ yd, +-/1" @25yd, etc. You'll see that on the charts in the cited sticky thread....

    What device did you borrow? Is it a triangle, or a chevron? They're not the same; a chevron is not filled-in for a reason.

    Reason I ask: With a Trijicon ACOG variant with a chevron reticle, one can still effectively mimic 1x RDS capability using a 50/200 zero, with the understanding that it'll likely somewhat invalidate the BDC (which may be the case anyway, since those are "recipe" optics where the BDC depends upon a specific mounting, barrel length/type, and ammo).

    If it's a triangle reticle, or some other brand with a chevron.....suffice to say that more info would be worthwhile, if it's available.
    Contractor scum, AAV

  3. #3
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    Its a triangle Mepro 21 reflex sight.

  4. #4
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    Okay, so a 12 MOA equilateral....

    That can give you some measuring/ranging capability; the base in particular, but any side is around 12" @100yd. Height of the triangle is gonna be 10.39MOA. Call it 10 or 10.5MOA. Regardless of reticle shape, if you know the measurements, you can use them to your advantage.

    I'm not seeing anything to make me thing that it'd act any differently than any other RDS optic, so a 50/200 zero to the tip of the triangle on that shouldn't be palpably different from tthe dot of an EO or Aimpoint. I'd want to know what the specific height-over-bore is for that thing mounted to an AR receiver; looks like it's primary job is to get stuck atop a Tavor, so it's either a lower-third co-witness, if it'll co-witness in the first place.

    ...but I've also no time spent with that one. If you have specific questions, ping TheMakoGroup directly. They seem to be the a good source for Tavor ancillary equipment. I think they can answer more for you, but I don't see you hitting any speed-bumps by treating it like any other RDS.

    Hope that's a help...
    Contractor scum, AAV

  5. #5
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    Ok. Well, I'll give it some range time to get an opinion of where it hits at different distances. I actually have it on a Styer AUG

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