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Help Please ...I Lost a Thread on POI!!

Discussion in 'Shooting Related Threads' started by DustyOne60, Mar 24, 2013.

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  1. DustyOne60

    DustyOne60 Active Member

    Joined:
    Feb 21, 2012
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    There was a great Thread dealing with POI and I cannot find it. If you can find it, I would appreciate any information you have.

    It included some mathematics regarding measuring the rib height at each end of the barrel and then determining the height difference between center bore and rib height and the corresponding angle between those two data points. Result allowed you to calculate the delta at 40 yards between your POA and your POI.

    Thanks in advance for any assistance you can provide.

    Cheers, Dusty
     
  2. Perazzi_MX8

    Perazzi_MX8 Well-Known Member

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    Sep 10, 2012
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    Location:
    Colorado
    Search for or scroll to: BT-99 Barrel POI differences
     
  3. wayneo

    wayneo Active Member

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    Try this link above^^^^^^^^^^^^^^^

    Wayne
     
  4. DustyOne60

    DustyOne60 Active Member

    Joined:
    Feb 21, 2012
    Messages:
    493
    Wayne:

    Thanks! That was the one.

    Cheers, Dusty
     
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