Help Needed - Sight Height Calculation

Help Needed - Sight Height Calculation

This is a discussion on Help Needed - Sight Height Calculation within the Optics forums, part of the Sniping Related category; I bought a Savage 110 Tactical LH in 308 and need some help with calculating the sight height so I can enter it in the ...

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Thread: Help Needed - Sight Height Calculation

  1. #1
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    Help Needed - Sight Height Calculation

    I bought a Savage 110 Tactical LH in 308 and need some help with calculating the sight height so I can enter it in the Hornady ballistic calculator. The scope is an Athlon Argos BTR 6-24x50 set in Warne low rings atop the factory 20 MOA base. How do I get the sight height for this? Thanks!

    David

    Sent from my moto g(6) play using Tapatalk

  2. #2
    Member Jester560's Avatar
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    All measurements taken at the objective end of scope:

    Half the barrel diameter+distance between top of barrel and bottom of objective bell+ half the objective bell diameter

    How do you like the scope?

    Sent from my SAMSUNG-SM-T337A using Tapatalk
    Ted_Feasel likes this.
    Bret Lawson

  3. #3
    Member lathoto's Avatar
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    The sight height is the distance from the centerline of the rifle bore to the centerline of the rifle scope. The default for sight height on the Hornady ballistics calculator is 1.5 inches. A .25 error in sight height equates to approximate .25 mil of come up at 1000 yards. The closer the better but more importantly the lower the better.
    See you at the range.

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  5. #4
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    Quote Originally Posted by Jester560 View Post
    All measurements taken at the objective end of scope:

    Half the barrel diameter+distance between top of barrel and bottom of objective bell+ half the objective bell diameter

    How do you like the scope?

    Sent from my SAMSUNG-SM-T337A using Tapatalk
    Other than just taking an occasional peek through it, I can't say yet as I have yet to shoot this gun.

    David

    Sent from my moto g(6) play using Tapatalk
    Jester560 likes this.

  6. #5
    Member Jester560's Avatar
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    Quote Originally Posted by yoda4x4 View Post
    Other than just taking an occasional peek through it, I can't say yet as I have yet to shoot this gun.

    David

    Sent from my moto g(6) play using Tapatalk
    If it helps, I have that exact scope on my 22lr and have shot it out to 400 yards. It tracks great and always returns to zero. I think you will like it.

    Sent from my SAMSUNG-SM-T337A using Tapatalk
    Bret Lawson

  7. #6
    Junior Member HOT COFFEE's Avatar
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    I have the Vortex PST Viper, essentially the same dimensions (33mm tube) Warne low rings on my Savage 110 Desert Tactical 6.5CM. Measures 2" center to center.....Using Strelok Pro ballistics app.

    Sent from my SM-G955U using Tapatalk
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  8. #7
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    Looks good. I haven't taken any photos, will in future, it is a bit of a distance for me to shoot.
    I am using the Savage 100LE 338LM with the same scope you have.
    Powder 7828, Win large magnum brass, 250g BTHP, COAL 0.020 from rifling lands.
    Getting 1/4 - 1/4 groups three rounds at a time, once I found harmonics. 1/4 - 1/4 = US quarter dollar at quarter mile.

    I purchased some Norma brass, Berger 300g with three different powders. In process of filling some cartridges and finding the apex for the new ammunition.
    There are advantages to being retired
    Last edited by tonytoshiba; 01-30-2019 at 06:27 PM.

  9. #8
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    Quote Originally Posted by tonytoshiba View Post
    Looks good. I haven't taken any photos, will in future, it is a bit of a distance for me to shoot.
    I am using the Savage 100LE 338LM with the same scope you have.
    Powder 7828, Win large magnum brass, 250g BTHP, COAL 0.020 from rifling lands.
    Getting 1/4 - 1/4 groups three rounds at a time, once I found harmonics. 1/4 - 1/4 = US quarter dollar at quarter mile.

    I purchased some Norma brass, Berger 300g with three different powders. In process of filling some cartridges and finding the apex for the new ammunition.
    There are advantages to being retired
    That's not a bad group at 440yds with 250gr bullets. What specific bullet were you using? I've been trying to workup a load for my buddies 110 BA 338. I've been using Retumbo powder and have not gotten under 1 MOA with 300gr bergers. I might need to try 7828..

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