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# MOA/Mills???

#1
02-20-2010, 02:23 PM
 Silver Member Join Date: Jul 2009 Location: Menan, Idaho Posts: 184
MOA/Mills???

So here is what I know, I shoot a mil dot scope and 1 mil = 3.4 MOA at 100 yards wich also equals 3.6 inches more or less at 100 yards Correct??

My questions is does that relationship change at 200 yds the same way that 1 MOA at 200 equals 2 inches and 1 at MOA is 300 yds is 3 inches, wherefore does 1 mil at 300 yds equal 10.8 inches?

My question spurs from a hunting situation I had yesterday with a coyote I new his distances was 429 yds and i did not have time to adjust my MOA so I used hold over with my mils I just was not sure if I was doing it right. Yes I missed the coyote. I shot high about 6 inches according to my spotter.

#2
02-20-2010, 03:00 PM
 Gold Member Join Date: Dec 2002 Location: mathias wv Posts: 985
Re: MOA/Mills???

3.6 @100, 7.2@200, 9" @250, 18" @500, 36"@1K, yep your gettin it
RR
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Born to Hunt, Forced to Work!
#3
02-20-2010, 06:37 PM
 Platinum Member Join Date: Feb 2003 Location: Pueblo, CO Posts: 1,154
Re: MOA/Mills???

I'm gonna assume you were about 18" low at 430 yds. assuming an avg. trajectory. That's 4.2 SMOA (18/4.3). 4.2/3.6 = 1.2 mil holdover.

Assuming this trajectory to be ~correct (and assuming u were at the correct magnification for the mil subtensions to be correct at 3.6 IPHY) and u hit 6" high at 430 yds. then u're off by 0.4 mil (6/4.3/3.6=0.4).

Remember though--these calcs aren't done in the field. All this should be calcd. beforehand and put someplace for quick reference. Almost every ballistics program has drop in mils these days, so u don't often even have to calculate it.
#4
02-21-2010, 11:00 AM
 Silver Member Join Date: Jul 2009 Location: Menan, Idaho Posts: 184
Re: MOA/Mills???

Thanks for your help. I am shooting a 223 WSSM at 3880 FPS. I have made up a MOA range card just from the Hornady web site. But it does not have Mils as an option.
What Balistics program do you guys use and how much is it? do you use it on like a palm pilot or on a smart phone?

Thanks
#5
02-21-2010, 11:22 AM
 Gold Member Join Date: Dec 2002 Location: mathias wv Posts: 985
Re: MOA/Mills???

I run exbal on a palm zire
RR
__________________
Born to Hunt, Forced to Work!
#6
02-21-2010, 07:39 PM
 Platinum Member Join Date: Feb 2003 Location: Pueblo, CO Posts: 1,154
Re: MOA/Mills???

I use Exbal too RR, on an old Palm system--but there r freebies out there too, somehwere.

Here's my dope and system for a different reticle, very quickly referenced--

Last edited by sscoyote; 02-21-2010 at 07:43 PM..
#7
02-21-2010, 11:10 PM
 Silver Member Join Date: Jul 2009 Location: Menan, Idaho Posts: 184
Re: MOA/Mills???

That is really cool, sorry this may be a dumb question but how does that system work? and what reticle is that for?

Thanks

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