Remounting a scope on a picatinny rail.

Discussion in 'Long Range Hunting & Shooting' started by EdWalton, Jun 6, 2015.

  1. EdWalton

    EdWalton Well-Known Member

    Messages:
    52
    Joined:
    Oct 4, 2014

    I’ve mounted my Schmidt & Bender to my Remington 700 using a Night Force picatinny rail with 20 moa of drop, and DNZ one piece rings. When working on the stock I removed the scope at the rail, I didn’t need to remove the rail from the action, after remounting the scope on the rail I was expecting my rig to still be close to zero, it was 4” low. Am I doing something wrong or will it be out every time it’s remounted?

    Thank You

    Ed
     
  2. FearNoWind

    FearNoWind Well-Known Member

    Messages:
    2,323
    Joined:
    Jul 10, 2012
    Ed, if you worked on the stock it's probable that the position of the action/barrel in the stock has changed. You don't say what work you did no on the stock but that's the first place I'd look for the reason your POI has changed - I'm assuming at 100 yards. A mil at 100 yards is about 3.6 inches. Four inches would be about 1.11 mils. That's about .06 degrees on angle change on the bore. It wouldn't take much change in the stock to generate the difference you describe.
    If I messed up the math on this one somebody send up a flare.:D
     
  3. EdWalton

    EdWalton Well-Known Member

    Messages:
    52
    Joined:
    Oct 4, 2014

    Previously I had changed the trigger, but the old pin for the bolt release wouldn’t fit in the new trigger, a friend fabricated a replacement so I could get the release functioning again.
    It’s a new H & S stock with an aluminum bedding block, the barreled action drops in so nice, I’ve not considered that I may not have replaced the action in the same place as when I originally sighted in.
    Thank You
    Ed
     
  4. bill123

    bill123 Well-Known Member

    Messages:
    568
    Joined:
    Jun 14, 2013
    Did u push the rings forward on the rail when installing them?
     
  5. MudRunner2005

    MudRunner2005 Well-Known Member

    Messages:
    12,840
    Joined:
    Oct 13, 2008
    Anytime you remove a scope, even with as precise as a picatinny setup is, you will still need to check your zero on paper at the range, and adjust as necessary.
     
  6. C.O. Shooter

    C.O. Shooter Well-Known Member

    Messages:
    1,956
    Joined:
    Jul 20, 2011
    [ame]http://m.youtube.com/watch?v=l6LXAXu15eg[/ame]
     
  7. EdWalton

    EdWalton Well-Known Member

    Messages:
    52
    Joined:
    Oct 4, 2014
    Yes, I started the original mounting with the rings all the way forward, then when remounting I pushed them all the way forward.

    Thank You

    Ed
     
  8. EdWalton

    EdWalton Well-Known Member

    Messages:
    52
    Joined:
    Oct 4, 2014
    I wish I could see your video, unfortunately I've got something miss set in my browser and can't see any videos posted on this sight.
     
  9. bill123

    bill123 Well-Known Member

    Messages:
    568
    Joined:
    Jun 14, 2013
    Didn't mean to insult your intelligence. Just hoping it was the easy fix first.
     
  10. EdWalton

    EdWalton Well-Known Member

    Messages:
    52
    Joined:
    Oct 4, 2014
    No insult taken, I just watched the YouTube video from Night force (originally shared by C. O. Shooter), obviously I'm doing something wrong, and I don't believe it's my equipment.

    Thank You

    Ed
     
  11. 4xforfun

    4xforfun Well-Known Member

    Messages:
    1,383
    Joined:
    Oct 1, 2007
    I am absolutely sure that I do stuff wrong, but every time I take the action out of the stock I re zero. Many, many times it is off further than I though possible. I am not talking about taking the scope off, I am talking about simply taking the action out of the stock. I wouldn't worry much about it. Fact of life.

    Just my .02