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how to figure moa at extended range

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  #1  
Unread 06-04-2001, 10:13 PM
 
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how to figure moa at extended range

my rifle shoots 3 shots into 2" at 300 yards.i was told this was .66 moa.how did he figure this?formula?thanks
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  •   #2  
    Unread 06-04-2001, 10:44 PM
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    Join Date: May 2001
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    Re: how to figure moa at extended range

    Lets make this simple to understand and round off the differance. A MOA is not really one inch but, for explaining this, I will use the 1 inch method, which is real close.

    1" is one minute of angle (MOA) at 100 yds.
    2" is one MOA at 200 yds
    3" is one MOA at 300 yds
    4" is one MOA at 400 yds
    5" is one MOA at 500 yds and so on.

    For each 100 yds the MOA goes up accordingly.

    If you shot a 2" group at 300 yds that would be two thirds of a MOA at that distance (300 yds) which is .666 MOA . 2/3= .666 after you divide.

    To give added info ---At 1000 yards a 10" group is one MOA.

    Each click with a 1/4 Min scope will change bullet impact(Elevation or windage) 1/4" at 100 yds.
    At 200 yds each click will move impact 1/2".At 300 yards 3/4" At 400 yds 1"---At 1000 yards 10 X 1/4"= 2 1/2" of impact change.
    At 2000 yds 20 X 1/4" = 5" of impact change for EACH click of your scope.

    Get a ballistics program for your computer like the Oehler and run the different yardages you intend to shoot. It will give you a complete printout for anything you want to know.

    Hope this helped you.

    DC [img]images/icons/smile.gif[/img]

    [ 06-05-2001: Message edited by: Darryl Cassel ]
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    Darryl Cassel
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      #3  
    Unread 06-05-2001, 04:58 PM
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    Join Date: May 2001
    Location: Arco, ID 83213
    Posts: 80
    Re: how to figure moa at extended range

    Darryl's explanation is good.

    Just for accuracy's sake, 1 MOA=1.047" @ 100 Yds.
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      #4  
    Unread 08-01-2012, 11:55 AM
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    Join Date: Jul 2012
    Location: I live in the mid west but soon will be back in the north west where I can shoot at long range again
    Posts: 16
    Re: how to figure moa at extended range

    A minute of angle is roughely 1 inch at 100 yards 2 inches at 200 yards 3 inches at 300 yards. 3 devided by 2 is 2/3 or .66 moa.
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      #5  
    Unread 08-01-2012, 12:52 PM
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    Join Date: Jun 2011
    Location: New Mexico
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    Re: how to figure moa at extended range

    Wow...I was 23 years old and just getting out of college when this thread was going on.
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      #6  
    Unread 08-01-2012, 03:10 PM
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    Join Date: Jul 2012
    Location: I live in the mid west but soon will be back in the north west where I can shoot at long range again
    Posts: 16
    Re: how to figure moa at extended range

    The 100% correct way is 1.047inches of angle for each 100 yards The person that gave you that reply knew what he was about. A moa. is 1/60th of a degree. at 100 yards that works out to 1.047 inches twice that at 200 yards and so on. and a mil is 3.5 moa or 1 yard at 1000 yards. I prefer moa because its one less function to deal with.
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      #7  
    Unread 08-01-2012, 05:00 PM
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    Join Date: Jul 2011
    Location: N.E.Ohio
    Posts: 266
    Re: how to figure moa at extended range

    It was long ago he doesn't even have a name anymore, just a nameles poster, poor guy.

    Gene
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