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Author Topic: Optic question  (Read 637 times)

Kaso

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Optic question
« on: October 31, 2016, 09:36:53 AM »
I have a new rifle, and I need a Good optic for it.  Most likely a Red Dot. 

The factory irons fold flat, but when flipped up they measure 1-3/4" from the top of the rail tooth to the top of the post - a bit higher than standard AR flip-ups.

I mounted may old Lucid HD-7, and the irons gave an absolute co-witness with that height of optic, so I want that height.  Does anyone have an Aimpoint PRO, that they could measure the height?  I need to know the distance from the top of the rail tooth, to dead center of the glass.

Alternatively, I would be open to other suggestions of Top quality red dots, or variable scopes with a low setting of 1x.

Thanks in advance.
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20 January 2017, 12:01pm
Here's to a great four years!

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    sqlbullet

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    Re: Optic question
    « Reply #1 on: October 31, 2016, 10:13:46 AM »
    The two that I am interested in trying:

    The SWFA SS 1-4X24 Classic, $399 or $419 with a SWFA cantilever mount,  probably will be on a black friday sale.

    The Athlon Midas BTR 1-6X24 Mil reticle, $529 from amazon free shipping with Prime.

    Now, that said, I just sold my Bushnell AR Optics 1-4X24 PCL throwdown because I didn't like the reticle OR the extra weight it put on the top of the gun.  For the short term I am putting iron sights back on the gun.  If I see a deal on one of the above scopes during the holiday season I will pick one up to try, but have some consternation about how I will like the weight.
    Utah

    StevenTing

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    Re: Optic question
    « Reply #2 on: October 31, 2016, 11:09:40 AM »
    The two that I am interested in trying:

    The SWFA SS 1-4X24 Classic, $399 or $419 with a SWFA cantilever mount,  probably will be on a black friday sale.

    The Athlon Midas BTR 1-6X24 Mil reticle, $529 from amazon free shipping with Prime.

    Now, that said, I just sold my Bushnell AR Optics 1-4X24 PCL throwdown because I didn't like the reticle OR the extra weight it put on the top of the gun.  For the short term I am putting iron sights back on the gun.  If I see a deal on one of the above scopes during the holiday season I will pick one up to try, but have some consternation about how I will like the weight.

    If you're interested in the Athlon scope, I do have some dealer friends that carry it locally and will likely be a more competitive price than Amazon Prime. There's a $180 margin on that particular model.  However, you will lose the ability to return like you can with Amazon.  I've heard many positives about Athlon but decided not to carry them because I know 5-6 people in the valley that sells them.
    Utah

    StevenTing

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    Re: Optic question
    « Reply #3 on: October 31, 2016, 11:13:14 AM »
    I have a new rifle, and I need a Good optic for it.  Most likely a Red Dot. 

    The factory irons fold flat, but when flipped up they measure 1-3/4" from the top of the rail tooth to the top of the post - a bit higher than standard AR flip-ups.

    I mounted may old Lucid HD-7, and the irons gave an absolute co-witness with that height of optic, so I want that height.  Does anyone have an Aimpoint PRO, that they could measure the height?  I need to know the distance from the top of the rail tooth, to dead center of the glass.

    Alternatively, I would be open to other suggestions of Top quality red dots, or variable scopes with a low setting of 1x.

    Thanks in advance.

    Does the Aimpoint website not give you the information you're looking for?

    Height of optical axis - sight and mount: 30 mm (1 3/16") over top surface of Picatinny/Weaver Rail
    Height of optical axis - sight, mount and low spacer: 39 mm (1 9/16") over top surface of Picatinny/Weaver Rail

    I assume one of those numbers is what you should be looking for in terms of height.
    Utah

    Kaso

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    Re: Optic question
    « Reply #4 on: October 31, 2016, 11:18:36 AM »
    Does the Aimpoint website not give you the information you're looking for?

    Height of optical axis - sight and mount: 30 mm (1 3/16") over top surface of Picatinny/Weaver Rail
    Height of optical axis - sight, mount and low spacer: 39 mm (1 9/16") over top surface of Picatinny/Weaver Rail

    I assume one of those numbers is what you should be looking for in terms of height.
    Yes, I did read the specs once.  Somehow I missed that.  So apparently I would need a taller spacer.
    Donald J Trump, by the Grace of God: 45th president of the United States.
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    Here's to a great four years!

    StevenTing

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    Re: Optic question
    « Reply #5 on: October 31, 2016, 11:23:55 AM »
    Yes, I did read the specs once.  Somehow I missed that.  So apparently I would need a taller spacer.

    The spacer will add another 9mm, or 3/8 of an inch, which I think sets you up too tall compared to you 1.75 inches.  I'm not sure how you overcome the difference with it being so small.
    Utah

    Kaso

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    Re: Optic question
    « Reply #6 on: October 31, 2016, 11:32:21 AM »
    The spacer will add another 9mm, or 3/8 of an inch, which I think sets you up too tall compared to you 1.75 inches.  I'm not sure how you overcome the difference with it being so small.
    Instead of using a 9mm spacer to raise it to 39mm, I need a 15mm spacer to achieve 44-45mm.  Or a 5/8", but that would raise it a bit higher.
    Donald J Trump, by the Grace of God: 45th president of the United States.
    20 January 2017, 12:01pm
    Here's to a great four years!

    Grant

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    Re: Optic question
    « Reply #7 on: October 31, 2016, 11:33:02 AM »
      As long as they're flipup why bother with cowitness?  just out of curiosity.    My red dots I run a bit higher than the sights, I need the sights I flip off the red dot.

       As far as low-power scopes.  Although "budget"  the Primary Arms series of scopes are VERY good for the money.  Good CS, and no problems.

       I also have a Bushnell Elite 1.25-4X scope. Amazing scope for the money.  #4 reticle with crosshairs if the battery dies and an illuminated center dot.

       
    Montana"I’d say the worst part of all this is the feeling of betrayal,           but I’m betting the part where they break in here and beat us to death might be worse.”

    Kaso

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    Re: Optic question
    « Reply #8 on: October 31, 2016, 11:54:11 AM »
      As long as they're flipup why bother with cowitness?  just out of curiosity.    My red dots I run a bit higher than the sights, I need the sights I flip off the red dot.
    Chiefly because I don't care to remove the sight and lose zero.  My trips to longer distance ranges (I will probably zero at 50 or 100) are infrequent, and I don't want to be unzeroed in the mean time.

    Due to the absurd height over bore, a 50yd zero will top out at +4.2 at 160, and cross back down at 284.  A 100yd zero will climb only to .25 at 120, and back down around 155.  That same 4.5 (only low) will be achieved around 250yds.
    Donald J Trump, by the Grace of God: 45th president of the United States.
    20 January 2017, 12:01pm
    Here's to a great four years!

    StevenTing

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    Re: Optic question
    « Reply #9 on: October 31, 2016, 12:01:50 PM »
    Interesting.  I have my Sig Romeo 4c and zeroed at 25 yards.  It crosses back down around 300 yards and with the Donut, it's relatively easy to hit 600 yards with it.

    If you don't mind spending a little money ($800ish), SWFA is blowing out their Sig Tango 6 1-6x optics.  Their price is a couple hundred below dealer cost and I'm tempted to pick one up as well. 
    Utah

    Kaso

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    Re: Optic question
    « Reply #10 on: October 31, 2016, 12:33:50 PM »
    x6 would be overkill in my area.
    Donald J Trump, by the Grace of God: 45th president of the United States.
    20 January 2017, 12:01pm
    Here's to a great four years!

    Grant

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    Re: Optic question
    « Reply #11 on: November 02, 2016, 01:29:36 PM »
    Chiefly because I don't care to remove the sight and lose zero.  My trips to longer distance ranges (I will probably zero at 50 or 100) are infrequent, and I don't want to be unzeroed in the mean time.

    Due to the absurd height over bore, a 50yd zero will top out at +4.2 at 160, and cross back down at 284.  A 100yd zero will climb only to .25 at 120, and back down around 155.  That same 4.5 (only low) will be achieved around 250yds.


    Get a quality QD mount and it will be 100% RTZ, or at the very most 1/2" off.

      My RS-Regulate side mounts for my AK's are 100%.  I honestly have had less than 1/4" change of POI, unnoticeable, when taking them on and off.   If an AK siderail can be that dependable, I'm sure they make as quality of one for a picatinny top.

    Montana"I’d say the worst part of all this is the feeling of betrayal,           but I’m betting the part where they break in here and beat us to death might be worse.”

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