Results 1 to 5 of 5
  1. #1
    User
    Join Date
    Nov 2015
    Location
    Prince Albert
    Posts
    172

    Default Nightforce Scope - Grub screws coming loose

    Hi to all.

    Got a night force scope with a zero stop elevation control and a side to side adjustment knob for windage.

    On both of these the grub screws now have a sudden alarming habit of coming loose and the sights go out of whack completely.

    Once the screws are loose and you bouncing in the bakkie, you talking about the scope becoming 3m wide at 100m!!!

    This is a .260Rem that normally shoots 1" group at 500m. Now you cant even get on paper at 25m. Have to boresight like a new mount.

    Loctite??? Blue?? Red? Any other pointers?

    As always, thanks in advance for the help.

    Cheers.

  2. #2

    Default Re: Nightforce Scope - Grub screws coming loose

    Does your local gunshop fit scopes? If they have a torque wrench, take the locktite and the clean screws(no oil or grit, dip in meth spirit and clean) and put an Small amount of Locktite 243(blue I think)on the threads. Otherwise lap the rings for a tighter fit. Thats a mission and requires a very good engineering or smithing friend. Good luck had a similar problem.

  3. #3
    User 414gates's Avatar
    Join Date
    Jul 2009
    Location
    26 9' 6" S, 28 13' 44" E
    Age
    55
    Posts
    4,144

    Default Re: Nightforce Scope - Grub screws coming loose

    If a scope turret is rotating because of loose grub screws, the scope adjustment should not be changing.

    If the reticle moves when you bump the scope, send it to the supplier for a check-up.

  4. #4
    User
    Join Date
    Dec 2009
    Location
    Vereeniging
    Age
    67
    Posts
    5,015

    Default Re: Nightforce Scope - Grub screws coming loose

    Cheap loctite = wood glue or nail lacquer.

  5. #5
    User
    Join Date
    Aug 2014
    Location
    Durban North
    Age
    55
    Posts
    649

    Default Re: Nightforce Scope - Grub screws coming loose

    If a scope turret is rotating because of loose grub screws, the scope adjustment should not be changing.

    If the reticle moves when you bump the scope, send it to the supplier for a check-up.
    I'm struggling to picture whats going on. Turrets loosening is different to rings loosening. I think your on the money with this one.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •