| Posted: Fri Nov 11th, 2005 04:41 PM |
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TwoBeards
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Ok here goes I have a question that I cannot find an answer to so I know you guys will be able to explain it to me so I can understand it. I know MOA is minute of angle my question is what is that? I have no idea of what it means or how you figure it out. Thanks Jimmy
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| Posted: Fri Nov 11th, 2005 07:00 PM |
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Charley
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A minute of angle is part of an arc. 360 degrees in a circle, 60 minutes in a degree. If you want to take it farther, 60 seconds in each minute. In other words, minute of angle is 1/21600 of a circle (360 degrees x 60 minutes). MOA measures a little over an inch at 100 yards...something like 1.016 inches or thereabouts. Most everybody I know uses 1 inch...close enough for most of us. MOA is a different measurement at different distances...1.016 at 100 yards, 2.032 at 200 yards, and so on.
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| Posted: Fri Nov 11th, 2005 10:34 PM |
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Gunrunner
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Two Beards, what Charley said. And most all of us do use the 1" @ 100 yards = MOA.
2" @ 200 yards = MOA
3" @ 300 yards = MOA And so on.
I use MOA numbers for my drop charts. Using my 308 as an example:
The riflescope is zeroed for 100 yards. I want to shoot at 300 yards.
At 300 yards the bullet has dropped 15".
Since 3" is MOA at 300 yards, I need 5 MOA elevation to be on target.
I've found it easier to write down the MOA needed rather than use inches. It's actually easier to use than to explain.
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| Posted: Sat Nov 12th, 2005 12:40 AM |
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TwoBeards
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Thanks so much Charlie and Gunrunner Now I understand what it is and it does make life easier. I cant thank you enough and it goes to show your never to old to learn something Jimmy
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| Posted: Sun Nov 13th, 2005 04:39 PM |
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Poacher
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TB
Gunrunner and Charley explained it great. If you want to get into MOA's a little further there is a ton of info about it in "The Ultimate Sniper" by Maj. John Plaster. The book has more info in it than most of us will ever use but it is very imformative.
Take care Be safe Poacher.
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| Posted: Sun Nov 13th, 2005 06:21 PM |
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