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Thread: Scope height/ring question

  1. #1
    Join Date
    Jan 2007
    Location
    orangeburg
    Posts
    2,795

    Default Scope height/ring question

    I was reading some old posts on the subject and someone referenced trig calculations so I will ask, since trig has long since passed me by. My basic question is what size(lowest) can I get by with? As we know, I ordered the wrong damn unimount/rings(see 6.5 shooters thread). I have constructed a cheek piece and it shoots fine, but I am going to change the rings out when I eventually change the stock. Here are the specs/measurements:

    Savage 10 bull barrel with 20 moa picarinny rail
    Nightforce nxs 8x32x56 30mm scope
    Nightforce 1.375" unimount

    Current sight height: 2.44" [(tube diameter/2) + (bolt diameter/2) + distance from top of bolt to bottom of scope]
    Current space between bell of scope and barrel: .68"(17.3mm)

    I can either get the XD rings in .885 or 1.0"

    By MY calculations, with the 1" rings, I would have a change of .375"(9.6mm) and scope would have .305" (7.7mm) of clearance.

    With the .885, change would be .49"(12.6mm) and scope would still have clearance of .19"(4.9mm), which still should be sufficient clearance between the scope and barrel.

    I emailed NF, and the seem to think that I need the 1" ring as I would only have a fraction of an inch clearance if I went lower, but I'm going to have a fraction of an inch anyway (1/10th" difference). Seems like the .885 will work as well.

    Am I correct or amI missing something?

  2. #2
    Join Date
    Jun 2010
    Location
    charleston
    Posts
    8,600

    Default

    take the damn rifle to the gunsmith and let him help you, you can swap rings/bases until you get the correct pair- then pay the man for his knowledge and supply of rings and bases

  3. #3
    Join Date
    Mar 2016
    Location
    Horry, SC
    Posts
    5,516

    Default

    Lows should clear a 56mm objective on a 20 moa base. I know the Burris tactical lows are .85

  4. #4
    Join Date
    Mar 2003
    Location
    Gobbler's Knob, GA/ Bamberg,SC
    Posts
    21,441

    Default

    Take the gun to Santee and get Talley to hook you up..
    F**K Cancer

    Just Damn.

  5. #5
    Join Date
    Dec 2007
    Location
    Providence
    Posts
    6,188

    Default

    Low Burris rings will be the ticket, I know because mine is the exact same and that's what I'm running. Talleys are also a great option.

  6. #6
    Join Date
    Dec 2011
    Location
    Rock Hill SC
    Posts
    9,154

    Default

    Check out ARC rings as well. Quality stuff.

  7. #7
    Join Date
    May 2012
    Posts
    2,885

    Default

    If you are in Orangeburg, take it to Talley in Santee and he will fix you up and mount correctly.

  8. #8
    Join Date
    Oct 2010
    Posts
    794

    Default

    Go to talley in Santee. I carried mine there and was in and out in about 5-10 mins. Would of been quicker but he showed me around and gave me free hats and stickers.

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