Estimating range with mildots... how tall is a crouching/prone character?

[Tassada 4]

Hey everyone

I just came across a nice video tutorial about estimating range using the mildots in the rifle scopes. There, the guy talked about an equation to quickly estimate the range to the target using the mildots in the scope. The equation is:

size of target(m)*1000/mildot_count at the maximum zoom level of the rifle.

One fact I've managed to establish from this video is that player models are about 1.80m tall. This would result in a range of 600m if the target covers 3 mildots when aiming at it. Is that correct?.

I wanted to draw a quick reference graph for standing, crouching and prone targets. Does anybody know how tall a crouching/prone player actually is? I would estimate about 1.30 m and 0.30 m but maybe someone knows an exact number :)

Thanks in advance

[enforcer1975 1111]

Depends on the weapon and the zoom factor. It's never the same because they didn't standardize the mildots like in A.C.E.

[Tassada 4]

Hmmmm ok, bummer. Zoom factor I understand, mildots only work properly at one specific zoom factor. But given the fact that the ballistics are kept very realistic in this game i would have thought that they are the same...

These guys claim that it works with different rifles (at least all rifles that do have mildots... namely AS50, M107, M24 and DMR... should be the same when at max zoom according to them):

Edited July 23, 2012 by Knurpsi

[DayzSandBox 157]

Just a couple of links. Hopefully there is something you can use...

http://www.armaholic.com/page.php?id=12346

http://www.armaholic.com/page.php?id=7227

[Daddy'o (DayZ) 146]

I made whole range finding tables and accurate mil-dot ranges for the DMR only to find that they're all affected by your resolution and aspect ratio. Hence they ended up being useful only to me and no one else.

[Tassada 4]

Thanks for the links, will look into it :)

Affected by aspect ratio? Never heard of this before...That sucks...

Edited July 23, 2012 by Knurpsi

[Tassada 4]

For now, I've just created a plot using the equation given in the YT videos until I find time to dig through the other info. Here's the result, comments appreciated.

@ Daddy'o: Does your range table look somewhat similar concerning the ranges + mildot counts?

Range on y axis, mildot count on x axis. The dashed horizontal lines are the effective ranges for the rifles (according to google and a DayZ wiki I've found)

[bennyedgehog 0]

Thanks Knurpsi I've been looking for a chart like this for hours.

[raffko 1]

There are actually many threads that have come to the conclusion that resolution and/or aspect ratio have an impact on mildots.

I for one get about 10% more mildot size than in your chart (the height*1000/mils formula) and it makes me wonder if those 1.80 meters might just be be wrong. Who ever came up with those? Can anyone verifiy it?

Obviously there is a large margin of error when you're estimating if that tiny soldier is 2.6 or 2.7 mils tall, with a shaking crosshair no less. So my own numbers won't be anywhere near 100% accurate but they would mean a standing person in arma2 is more like 1.95 meters tall.

Edited July 30, 2012 by raffko

[Tassada 4]

Thanks Knurpsi I've been looking for a chart like this for hours.

you're welcome :)

But keep in mind, I've made this using a formula and the height estimate from one of the two YT vids I've posted. I have no idea how accurate this actually is. I just downloaded a shooting range map to test it out. Will get back to this thread with results asap.

EDIT:

I assume, the bullet drop etc. is the same in DayZ as in the regular arma?

Edited July 31, 2012 by Knurpsi

[Tassada 4]

There are actually many threads that have come to the conclusion that resolution and/or aspect ratio have an impact on mildots.

I for one get about 10% more mildot size than in your chart (the height*1000/mils formula) and it makes me wonder if those 1.80 meters might just be be wrong. Who ever came up with those? Can anyone verifiy it?

Obviously there is a large margin of error when you're estimating if that tiny soldier is 2.6 or 2.7 mils tall, with a shaking crosshair no less. So my own numbers won't be anywhere near 100% accurate but they would mean a standing person in arma2 is more like 1.95 meters tall.

hmmm after doing some testing I tend to agree now... Either this formula or the size of the target is wrong. + there is the uncertainty of resolution and/or aspect ratio.

So I tried to be as 'scientific' as possible when testing this. I did it with screenshots, pixel counting in GIMP to get a +/- accurate mildot count (obviously this isn't very applicable in-game :) ) and a nonlinear regression in R.

So i ended up at a person size of roughly 1.96m.

Would you mind sharing your screen resolution?

Mine is 1680x1050, 16:10. It would, of course, be AWESOME if yours is different :)

Edited July 31, 2012 by Knurpsi

[raffko 1]

My resolution and aspect ratio are 1920x1080, 16:9.

So I guess its safe to assume that people in arma are simply not 1.80 meters tall.