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updated 1/4 1/8 MOA vs. .1 or .05 MRAD Distance

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/20/2012 at 09:11
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Scope Swapper

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MOA and MRAD can be tricky I guess.
 
It never changes and is a constant.  Do not confuse the TWO they are very different.  Why did I convert MRAD to inches when MM are the standard unit.  Because we still measure in inches and still call MOA groups (I don't like it either)...
 
Milliradian usage is not complicated, though it may seem so at first.
 
1000radians = milliradian
 
1 milliradian = 1000radians
 
Basically, one “mil” equals 1 unit at 1000 units of distance.
 
So a 1” object will occupy 1 mil of space on the reticle when it is 1000 inches away.

3.6” at 3600 inches (100 yards)

1 foot at 1000 feet

1 “mil”=

1 yards at 1000 yards

1 meter at 1000 meters

For those thinking in terms of Minute-of-Angle (MOA),

1 mil = 3.438 MOA.

 
I still get asked this very frequently and was just PM'd about how to know these values.  SEE THE MATH PORTION AT THE BOTTOM
 
I hope I didn't make any mistakes.
 

YRDS

MOA

 

MOA

MOA

 

MRAD

MRAD

MRAD

 

INCHES

 

0.25

0.125

 

INCHES

0.1

0.05

100

1.047197551

1MOA

0.261799388

0.130899694

1MRAD

3.6

0.36

0.18

200

2.094395102

1MOA

0.523598776

0.261799388

1MRAD

7.2

0.72

0.36

300

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/20/2012 at 09:14
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i hate math. your an animal!!Excellent
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/20/2012 at 09:29
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Scope Swapper

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No, it is really simple I promise.
 
Rule of thumb: 1 MOA = rounded 1 inch @ 100yrds or 10 inches @ 1000yrds
 
so simply use .25 or .125 x distance.  That makes it much easier.
 
As shown the math is ridiculous so maybe use
(1.04" or 10.4"at 1000yrds).
 
Rule of thumb: 1 MRAD = 3.6" @100yrds or 36" @ 1000yrds
 
so increments of .36 and .18 x distance. Again Easy
 
SKIP TABLE 2 as you should not really measure in meters and shoot in inches but I did get the question as a few clubs are in meters and a few people are out of this country.  The math in Meters and CM is much more simple.
 
 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/20/2012 at 09:36
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works for me.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/20/2012 at 11:08
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Scope Swapper

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I did this in Excel as an easier way to do things I guess it might have confused some.
 
Simply pick your value of correction on your scope either in MOA or MRAD and then pick your distance that will tell you how much you are moving with 1 CLICK or POSITION VALUE...
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/20/2012 at 12:01
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The best solution is to have a spotter with a reticle as well, and a buddy who knows how to read it!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/20/2012 at 17:03
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This is not a replacement of any mildot or reticle measurement system this is for someone who has common plex or crosshairs or target dot and has troubles with the math or needs a cheat sheet.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/20/2012 at 18:29
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That was a lot of work just to put in in a post. Hats to you good work.Kneel Suckers
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/20/2012 at 18:35
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Anyone want the expanded version with 5yrd and 5 meter segments.

I also have a calculator I could give you. Or you could go to the dollar store and buy that same calculator.
 
This was no sweat each cell or value converts buy 1 of three inputs and just flows from that computation.
 
The bottom shows the simplicity of radians and minutes.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/21/2012 at 08:29
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It took some muddling but I actually understood all that....surprise ...surprise! ExcellentExcellentExcellent
 
I cleared up alot of my confusion between the different measurement systems!
 
Well done Steve!!!  I'm sure that chart provided several hours of distraction to set-up.
 
Thanks for sharing...it really helped.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/22/2012 at 11:37
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YARDS 1 MOA 1/4 MOA 1/8MOA
100 1 0.25 0.125
200 2 0.5 0.25
300 3 0.75 0.375
400 4 1 0.5
500 5 1.25 0.625
600 6 1.5 0.75
700 7 1.75 0.875
800 8 2 1

No one
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/22/2012 at 11:59
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I'm the reason they came up with handgrenades... Bucky .... and shotguns come to think about it!
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