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Scope Turret Adjustment:

Discussion in 'Anything Airgun Related' started by neiled, Jan 2, 2014.

  1. neiled

    neiled Donator

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    Could someone please confirm that I'm correct in believing that when my scope user manual states “Each click of adjustment is measured in minutes of angle on the target. One click of movement equates to 1/4” of movement on a target set at 100 yds distance” meaning that if I zero the scope at 25 yards then the adjustment is a quarter of this? i.e. each click adjusts it by 1/16" at 25 yards

    Thanks in advance.
    distance.
     
  2. Andy_J

    Andy_J Replica Airgun Enthusiast

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    I read this ages ago and always go by it:

    Most (but not all) scopes have 1/4 MOA adjustments. 1 minute of angle (MOA) equals roughly 1" at 100 yards (or 1/4" at 25). That means that at 100yds it takes 4 clicks to move the scope 1 inch. 25yds is 1/4 of 100yds so you would multiply the number of clicks to move the POI 1" by 4. In other words 16 clicks for 1" of movement at 25yds. So unless you have a fine target scope (1/8 MOA adjustments) or one of the rare oddball 1/3 or 1/5 MOA scopes you're probably good to go with 16 to the inch.

    Many scopes have a graduated scale around the adjustment knob which increments representing a certain amount of point of impact movement on the target. The most common increment is 1/4 minute of angle which means one click or per increment adjustment moves the point of impact 1/4" at 100 yards.


    [TABLE]
    [TR]
    [TD]Per increment[/TD]
    [TD="align: center"]25[/TD]
    [TD="align: center"]50[/TD]
    [TD="align: center"]100[/TD]
    [TD="align: center"]200[/TD]
    [TD="align: center"]300[/TD]
    [TD="align: center"]400[/TD]
    [TD="align: center"]500[/TD]
    [/TR]
    [TR]
    [TD]1/2 MOA[/TD]
    [TD="align: center"]1/8[/TD]
    [TD="align: center"]1/4[/TD]
    [TD="width: 60, align: center"]1/2[/TD]
    [TD="width: 60, align: center"]1[/TD]
    [TD="width: 60, align: center"]1 1/2[/TD]
    [TD="width: 60, align: center"]2[/TD]
    [TD="width: 60, align: center"]2 1/2[/TD]
    [/TR]
    [TR]
    [TD]1/4 MOA[/TD]
    [TD="align: center"]1/16[/TD]
    [TD="align: center"]1/8[/TD]
    [TD="align: center"]1/4[/TD]
    [TD="align: center"]1/2[/TD]
    [TD="align: center"]3/4[/TD]
    [TD="align: center"]1[/TD]
    [TD="align: center"]1 1/4[/TD]
    [/TR]
    [TR]
    [TD]1/8 MOA[/TD]
    [TD="align: center"]1/32[/TD]
    [TD="align: center"]1/16[/TD]
    [TD="align: center"]1/8[/TD]
    [TD="align: center"]1/4[/TD]
    [TD="align: center"]3/8[/TD]
    [TD="align: center"]1/2[/TD]
    [TD="align: center"]5/8[/TD]
    [/TR]
    [/TABLE]
    Unit Inch
     
    Last edited: Jan 2, 2014
  3. neiled

    neiled Donator

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    Thanks Andy

    I thought I was right but its' one of them strange ones when a little voice inside questions your ability on some of the most basic things...... or is it just that I'm getting old!
     
  4. Andy_J

    Andy_J Replica Airgun Enthusiast

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    You are welcome. Happy new year.

    ps, anything for a fellow Wrexham lad. ;)
     
  5. neiled

    neiled Donator

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    And the very best to you too mate........Wrexham yes but not a Jacko :rolleyes:
     

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