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I was recently talking to an army sniper buddy when he was home on leave about a month ago. mil dots came up. we were talking about my leupold m3A scope and of course it being the one he uses in the army. he told me you cant get accurate shots with the mildot master using the m3A because the mildot master is for "marine" mildots (ovals) and the m3A uses circle "army" mildots. he didnt go into much more detail, but is this true, and if so how many moa difference are we talking here.
 

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As far as I remember, the USMC mils are 1/4mil from edge to edge, and 3/4 between the dots. And one mil from outer edge to inner edge or center to center.

US Army mils are a tad less "genious" simply because there's 1 mil from outer to inner edge - or from center to center. The dots themselves are .22 mils. Not that handy...but better looking - if that matters to you, I mean.

Nightforce has a bit different mil-dot setup. Their mils are 1/4 mil across, but still completely round. With a 1/32 tiny dot in the middle. Personally, I prefer this reticule over all other reticules.
 

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It depends on what parts of the mildots are used to make the measurement, but my "head math" tells me it would 6% in the extreme. 6% at 800 meters is 48 meters off... that would be a clean miss.

MEL
 

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Of course the mil-relation formula works for any reticule. The thing that is different is the physical size of the dots. The distance between the center of each dot is exactly the same on all mildot reticules. But it is easier to make a more accurate mil measurement when you know exactly the size of the mildots and are able to use that to your advantage. The mildot master is based on using the distances between the extents of the mildots, etc to get an accurate reading. Because of the differences in the sizes of the actual dots, the distance between the end of one dot and the start of the next is different, etc. Its just a matter of knowing the size so you can make accurate measurements.

I'm sure I just confused everyone

MEL
 
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