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The Basics, Starting Out
Mill or MOA
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<blockquote data-quote="QuietTexan" data-source="post: 2144398" data-attributes="member: 116181"><p>Mil works fine with imperial units like inches and yards, it's not limited to only working in metric length measurements. 1 radian is the length along the radius of a circle equal to the radius itself. A milliradian in 1/1000th of that. You can describe it in inches just fine, so if you're functional in inches and yards for distance use them. I think that's the part that hangs people up on changing - you don't have to start using meters and centimeters at all, you just have to change your thinking a bit regarding what you're describing. Which is an angle defined by your distance from the object, and not a fixed description of the angle itself.</p><p></p><p>An MOA is 1/60th of 1/360th of a circle, and a radian is an arc as wide as however far away you are from the object.</p><p>[ATTACH=full]259250[/ATTACH]</p><p></p><p></p><p>1 Mil (3.6" at 100 yards) describes a larger angle than 1 MOA (1.047" at 100 yards), meaning as distance increases your Mil number will be smaller than the corresponding MOA. That's the "easier to communicate part", looking at a random 30-06 1000 yard ballistic table at 700 yards I can say "drop 5.2" for mil instead of "drop 18 and a quarter" for MOA. You spin 52 clicks at 1/10mil vs 73 in 1/4 MOA.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2144398, member: 116181"] Mil works fine with imperial units like inches and yards, it's not limited to only working in metric length measurements. 1 radian is the length along the radius of a circle equal to the radius itself. A milliradian in 1/1000th of that. You can describe it in inches just fine, so if you're functional in inches and yards for distance use them. I think that's the part that hangs people up on changing - you don't have to start using meters and centimeters at all, you just have to change your thinking a bit regarding what you're describing. Which is an angle defined by your distance from the object, and not a fixed description of the angle itself. An MOA is 1/60th of 1/360th of a circle, and a radian is an arc as wide as however far away you are from the object. [ATTACH type="full" alt="radian.jpg"]259250[/ATTACH] 1 Mil (3.6" at 100 yards) describes a larger angle than 1 MOA (1.047" at 100 yards), meaning as distance increases your Mil number will be smaller than the corresponding MOA. That's the "easier to communicate part", looking at a random 30-06 1000 yard ballistic table at 700 yards I can say "drop 5.2" for mil instead of "drop 18 and a quarter" for MOA. You spin 52 clicks at 1/10mil vs 73 in 1/4 MOA. [/QUOTE]
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The Basics, Starting Out
Mill or MOA
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