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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Conversion from mil-dot to MOA on IOR MP-8
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<blockquote data-quote="DMCI" data-source="post: 18512" data-attributes="member: 1730"><p>Gentlemen:</p><p></p><p>I probably do this once a week, but there is a lot of fog in the air about Mil Dots, but hopefully this will help.</p><p></p><p><strong>Ranging tool:</strong></p><p><strong></strong></p><p><strong>The WERM formula is as follows:</strong></p><p><strong></strong></p><p><strong>Height of target (yards) x 1000</strong></p><p><strong>-------------------------------- = Range(Yds)</strong></p><p><strong>Height Target (Mils)</strong></p><p></p><p>So if your target is 72" and the Mils is 4, your range is 500 yards. (As Rush says, for those of you in RIO LINDA, 72" is exactly 2 yards!)</p><p></p><p>or if your target is 36" and your mils is 3,</p><p>your range is 333 yards.</p><p></p><p>1 yard x 1000</p><p>------------- = 333 yards</p><p>3 mils</p><p></p><p>or if your target is 18" and your mils are 2, your range is 250 yards.</p><p></p><p>Now a slight variation on this which generally requires a calculator is </p><p></p><p>Height target (in)x 27.7</p><p>------------------------ = Range (yds)</p><p>Mils observed</p><p></p><p>or you can round off to 30 and do the calculation in your head. </p><p></p><p>I have found however, that the formula for target height in yards is the easiest to use.</p><p></p><p>That 3.3... jazz just confuses the issue.</p><p></p><p>(Note: If you are a Prairie Dog shooter, and your target is 9" tall, and you see 2.5 mils, your range is .25x1000/2.5=100 yards! <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" />)</p><p></p><p>D. <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>PS: Now that you know the range you need to adjust your knobs for the hold over. You just make you come up chart in MOA and dial that in with your knob.</p><p></p><p>Alternatively, you can make the come up chart in Mils and uses the dots for holdover, but that is a little more difficult. By the way, this is why you need a scope with accurate mil dots and/or accurate clicks. </p><p></p><p>A come up chart might look something like this:</p><p></p><p>[code][/code]</p><p></p><p> I can't help it, thats the way it is! <img src="http://images/icons/grin.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>[ 03-30-2004: Message edited by: DMCI ]</p></blockquote><p></p>
[QUOTE="DMCI, post: 18512, member: 1730"] Gentlemen: I probably do this once a week, but there is a lot of fog in the air about Mil Dots, but hopefully this will help. [B]Ranging tool: The WERM formula is as follows: Height of target (yards) x 1000 -------------------------------- = Range(Yds) Height Target (Mils)[/B] So if your target is 72" and the Mils is 4, your range is 500 yards. (As Rush says, for those of you in RIO LINDA, 72" is exactly 2 yards!) or if your target is 36" and your mils is 3, your range is 333 yards. 1 yard x 1000 ------------- = 333 yards 3 mils or if your target is 18" and your mils are 2, your range is 250 yards. Now a slight variation on this which generally requires a calculator is Height target (in)x 27.7 ------------------------ = Range (yds) Mils observed or you can round off to 30 and do the calculation in your head. I have found however, that the formula for target height in yards is the easiest to use. That 3.3... jazz just confuses the issue. (Note: If you are a Prairie Dog shooter, and your target is 9" tall, and you see 2.5 mils, your range is .25x1000/2.5=100 yards! [img]images/icons/smile.gif[/img]) D. [img]images/icons/smile.gif[/img] PS: Now that you know the range you need to adjust your knobs for the hold over. You just make you come up chart in MOA and dial that in with your knob. Alternatively, you can make the come up chart in Mils and uses the dots for holdover, but that is a little more difficult. By the way, this is why you need a scope with accurate mil dots and/or accurate clicks. A come up chart might look something like this: [code][/code] I can't help it, thats the way it is! [img]images/icons/grin.gif[/img] [ 03-30-2004: Message edited by: DMCI ] [/QUOTE]
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Conversion from mil-dot to MOA on IOR MP-8
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