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Thread: MOA value of LaRue BUIS

  1. #11
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    Quote Originally Posted by Alpha Sierra View Post
    I just need to know the nominal click value in MOA for a LaRue BUIS.
    You can't have a nominal click value in an iron sight when you don't know the sight radius.

    If you ASSUME (we all know what that means) the sights are for use on carbines, then maybe they were made for some specific MOA on carbines.
    Of course using them on a mid-length or rifle length front sight placement would change the value per click by enough to matter.
    Randall Rausch
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  2. #12
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    Quote Originally Posted by Wayne Dobbs View Post
    Why don't you call LT and ask them what the click value is on their product?


    No one uses a phone anymore, and that'd be WAY too easy...
    NOT in training for combat deployment.

  3. #13
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    Quote Originally Posted by Alpha Sierra View Post
    Thanks for trying to help but none of those factors are relevant to the question as they do not affect the distance that point of impact is moved by each windage click.
    The length of your gas system and bbl are completely relevant. Try measuring a M16A4 bore to FSP and then try it on a carbine... Its different, so then in fact the adjustments are different (not by much - but they ARE)

    B
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  4. #14
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    Per Austin at LT, the nominal click value of their BUIS is 1/2 MOA. Obviously sight radius will affect that value, but that is the nominal value of the unit.

    Moving on to sports and weather after the commercial break...

  5. #15
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    Quote Originally Posted by Wayne Dobbs View Post
    Per Austin at LT, the nominal click value of their BUIS is 1/2 MOA. Obviously sight radius will affect that value, but that is the nominal value of the unit.

    Moving on to sports and weather after the commercial break...

    But what's the MOA value at 200 yards?

  6. #16
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    Quote Originally Posted by jmart View Post
    But what's the MOA value at 200 yards?
    1/2 MOA is 1/2 MOA at any distance. The linear distance subtended by that arc varies according to this proportion: 1 MOA = 1" per hundred yards. The actual value is 1.047 inches but such precision is not necessary.

    1/2 MOA subtends 1 inch at 200 yards.

  7. #17
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    Quote Originally Posted by SinnFéinM1911 View Post
    The length of your gas system and bbl are completely relevant. Try measuring a M16A4 bore to FSP and then try it on a carbine... Its different, so then in fact the adjustments are different (not by much - but they ARE)

    B
    Yes. I was just asking in practical terms.

    Even when I shoot mid range prone matches, I don't calculate the exact MOA value of my rear sight. It is a nominal 1/4 MOA sight and I click as if it were even though my rifle's sight radius may not be exactly what the sight was regulated for.

    That was my only point.

  8. #18
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    Quote Originally Posted by Wayne Dobbs View Post
    Per Austin at LT, the nominal click value of their BUIS is 1/2 MOA. ...
    Thank you. I had a very busy day at work and did not have the time to make too many phone calls.

  9. #19
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    You're welcome. Gave me an excuse to speak to a buddy of mine at LT and to "meet" Austin on the phone. He's supposed to be the "answer man" there BTW.

  10. #20
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    Quote Originally Posted by Alpha Sierra View Post
    1/2 MOA is 1/2 MOA at any distance. The linear distance subtended by that arc varies according to this proportion: 1 MOA = 1" per hundred yards. The actual value is 1.047 inches but such precision is not necessary.

    1/2 MOA subtends 1 inch at 200 yards.
    It was a joke, but thanks for answering anyway.

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