Results 1 to 4 of 4

Thread: POI changing as elevation changes?

  1. #1
    Sharp Shooter

    User Info Menu

    Default POI changing as elevation changes?

    OK, so the weekend I ran out of Shoot'n'See targets which I've always posted at more or less the same position ito height and completely level if I check with a spirit level. I then printed some smaller targets - 7 in total - on an A4 page. Posted this up and started shooting at the bottom left target which is at about the same height I usually post the Shoot'n'See's. POI remained as before, more or less on the bull area as I've zeroed the scope at this level before.
    Then I shifted up to the next target above and, oh gosh, the groupings now sit at 1cm below the bull.
    Then I shifted to the topmost center target on the page and the darn group sits 2cm below the bull!!!

    I shot at 30yards and 12x mag with a 4-16x50AO scope with the parallax set to 30 yrds exactly.
    Pellets are 0.20 H&N F&TT at 11.6grains at 860fps.

    What gives? Is this normal for a springer even if the amount of elevation from bottom to top of an A4 page is so slight?

    Any ideas or is this normal and I'm just not used to shooting slightly "up"?
    Sign Up To Air Rifle SA Forums

  2. #2
    Inactive Member

    User Info Menu

    Default

    Sounds like the principle of morter fire ?
    Sign Up To Air Rifle SA Forums

  3. #3
    Inactive Member

    User Info Menu

    Default

    Could be hold sensitivity, you may be holding the gun slightly differently for each level you shoot at. Hold sensitivity is more pronounced in lighter rifles with heavier recoil.

    Try not to grip the rifle tightly, let it move when you fire.
    Sign Up To Air Rifle SA Forums

  4. #4
    Inactive Member

    User Info Menu

    Default

    [blockquote]Try not to grip the rifle tightly, let it move when you fire. [/blockquote]

    This never worked for me, even my Steyr gets the "irongrip"
    Sign Up To Air Rifle SA Forums


Similar Threads

  1. Silencer changing POI?
    By TylerD in forum Airgun Discussions
    Replies: 18
    Last Post: 13-03-12, 22:22
  2. Elevation question
    By Crafty in forum Optics | Sighting | Illumination
    Replies: 24
    Last Post: 22-02-10, 12:07
  3. elevation and ranging
    By speedfox_2002 in forum Optics | Sighting | Illumination
    Replies: 17
    Last Post: 22-09-09, 20:39
  4. Changing a reticle...
    By Bludlust in forum Optics | Sighting | Illumination
    Replies: 11
    Last Post: 22-07-09, 18:22

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Friends of Air Rifle SA