November 3, 2010, 08:57 AM | #1 |
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Mil-dot reticle help
Hi, wondering if anyone can help me with range estimation using mil dot reticles. From what ive heard, and according to my scopes chart that came with it, the formula to figure out the distance is as follows. (please correct me if im wrong.)
This example will be using a 12" target. 1.) Once you know the size of your target, (in this case 12" paper target), you need to put that into a fraction by dividing the target size ex. 12" by 39.37 (1 meter). 12" ÷ 39.37" = 0.304" 2.) Once you get your fraction of a meter using inches, multiply that by 900. 0.304 x 900 = 273.6 3.) Say your 12" target measures 3 mil-dots on the scope reticle from your position. 273.6 ÷ 3 = 91.2 Then the estimated distance of your target would be 91.2 meters. Does this sound right? or is it just what my scope manufacturer is going by, specific to my scope? any advice Thanks.
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November 3, 2010, 09:04 AM | #2 |
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Do you have one of those Mil Dot Masters? It's been a while since I milled targets, so I've forgotten almost all of it.
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November 3, 2010, 09:19 AM | #3 | |
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November 3, 2010, 12:47 PM | #4 |
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I think the easiest method is the meter method.
Figure out how high your target is in meters (man is 1.8-2 meters for example), multiply by 1000 and divide by the number of mills. So, you have a guy 2m tallx1000=2000 and say he's taking up 3 mills so 2000/3= 667 yards. But PLEASE correct me if I'm wrong because I usually am. I found the web where I picked this one up, it's here: http://www.shooterready.com/rangingclass.html |
November 3, 2010, 04:06 PM | #5 | |
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That seems to be the general formula. However my scope said to times x it by 900 instead of 1000. Im thinking my scope might not be to mil spec? btw it's a Leapers 5th generation 3-9x40. I know its not the greatest but it will do for now, i already got enough money into my rifle
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November 3, 2010, 07:27 PM | #6 |
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Also unless you have a scope that has the reticle in the first focal plane (FFP) you have to be at a certain zoom/magnification for the mil dots to be calibrated correct usually its 10x, but not with all scopes.
http://www.mil-dot.com/
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November 3, 2010, 07:55 PM | #7 |
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+1 on what Palmetto-Pride said. Not all Mil dot scopes are equal. Not all use even mil counts on the elevation and different on the windage.. Then, the turrets are MOA (inch) and not metric. And what demigod was speaking of with the Mil-dot Master is a commercial product that is set up like a slide-rule. With bullet weight, range and additional factors for computing mil dot adjustments.. Dillon carries them as do a number of high-power related stores. They cost a round $29 bucks...
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November 3, 2010, 10:04 PM | #8 |
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I was a tank gunner in the army and we used mil dot sight when our periscope sight didn't work. One mil is one minute of angle folks. If your scope is sighted in at say 200 yd. and your target is at 300 yd hold over the same # of mils that your caliber drops from 200 to 300 yd. A .270 with 130 gr. bullets will drop 7.5" from 200 to 300 yards. one minute of angle at 300 yards is 3+" so hold over 2 1/2 mils. sight between the 2 and 3 mil dots. You will hit very close to center. Trying to use complicated math formulae while shooting is an exercise in frustration. K.I.S.S.
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November 3, 2010, 10:11 PM | #9 | |
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November 3, 2010, 10:14 PM | #10 | |
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One mil is NOT one MOA. 1 MOA = 1 MOA. One mil is more like 3.6 MOA. Formulas are necessary for the task of mil dot ranging. Size of target (in yards) x 1000 Size of target in Mils = Range in yards Last edited by shooter_john; November 3, 2010 at 10:21 PM. |
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November 3, 2010, 10:14 PM | #11 |
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And yes, for the record these measurements are based on a scope that is at full zoom x9
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November 3, 2010, 10:19 PM | #12 | |
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and to think this is an ex army gunner? 1 mil dot @ 100 yards = 3.6 inches. or 3.438 MOA
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November 3, 2010, 10:55 PM | #13 |
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That can also depend on the size of your dot, there are round mil dots and oval mil dots, most likely for the simple fact that it wasn't complicated enough already.
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November 3, 2010, 11:33 PM | #14 | |
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It truly brings a new respect to snipers that can plant themselves on a mountain top and hit targets at 2,707 yards (Craig Harrison), while estimating/calculating on the fly. amazing
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November 4, 2010, 10:44 AM | #15 |
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I know for sure I could use my laser range finder on it faster than I could do the math...
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November 4, 2010, 10:47 AM | #16 | |
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November 5, 2010, 12:32 AM | #17 | |
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mil dot , reticle , rifle , scope , sniper |
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