View Full Version : How did I get this wrong? (How many minutes are there in 3.4 mils at 236 yards?)

allan

05-09-2008, 12:53 PM

Did I get this wrong? I can't see how but the web app seems to think so.

http://ballistictech.com/test_your_skills.html

1) How many minutes are there in 3.4 mils at 236 yards?

A. 3.4

B. 12.24

C. 3.5598

D. 11.69

Hmmm,

1mil @236yrds = 8.49" * 3.4 = 28.86": so (3.4mil @ 236yrds = 28.86")

1 MOA @ 236yrds = 3.59"

28.86/3.59=8.03

Check: @236yrds 1 MOA = 3.59", click 8 MOA = moves 28.72" (3.59 * 8)

ocabj

05-09-2008, 12:59 PM

I have no idea what you're doing, but 1MOA at 236 yards is 2.471386291~ inches.

wildcard

05-09-2008, 1:15 PM

allan.. it's a trick question.

It doesn't matter how many yards we're talking about.. the number of minutes per mil will stay the same. Your answer is simply 3.4 MILs X 3.6 MOA/MIL = 12.24 MOA

By the way.. I have no idea what in the world you calculated..

wildcard

05-09-2008, 1:20 PM

Now if they wanted to know how many INCHES there are at 236 yards in 3.4 MILS, just take the number of MOA X yards / 100.

12.24 MOA X 236 YARDS / 100 = 28.9 inches

All this assumes 1 MOA = 1" at 100 yds.

allan.. it's a trick question.

It doesn't matter how many yards we're talking about.. the number of minutes per mil will stay the same. Your answer is simply 3.4 MILs X 3.6 MOA/MIL = 12.24 MOA

By the way.. I have no idea what in the world you calculated..

It says 12.24 is wrong... 11.69 is the correct answer...

Why would yardage be irrelevant, if a mil unit of measure is exponential at every 100yrds (3.6:100, 7.2:200, 14.4:300, etc) 3.4mil @ 100yrds is much smaller than 3.4mil @ 400 yrds, No?

The first part of my calc was right, where I messed up was the MOA @ 236 it's 2.47 like ocabj said.

So plug that into the second part of my formula and you get:

28.86/2.47=11.68 (within 1/100 of 'the correct answer')

I have no idea what you're doing, but 1MOA at 236 yards is 2.471386291~ inches.

Why is it 2.47 and not 2.36?

MOA doesn't scale linearly w/yards?

Thx!

Timberwolf

05-09-2008, 2:51 PM

Why is it 2.47 and not 2.36?

MOA doesn't scale linearly w/yards?

Thx!

Allan 1MOA at 236 using "shooters" MOA (1 MOA = 1")is 2.36; using true MOA (1MOA = 1.047197580733) its 2.47.

wildcard

05-09-2008, 10:20 PM

It says 12.24 is wrong... 11.69 is the correct answer...

12.24 is the answer if you use 1MOA = 1"

11.69 is the answer if you use 1MOA = 1.0472"

This will depend on the maker of your scope.

Why would yardage be irrelevant, if a mil unit of measure is exponential at every 100yrds (3.6:100, 7.2:200, 14.4:300, etc) 3.4mil @ 100yrds is much smaller than 3.4mil @ 400 yrds, No?

You're getting inches, MOA, and MIL mixed up.

While the value in inches will vary by distance, the value of MOA per MIL will remain the same no matter the distance. IT IS THE VALUE OF INCHES PER MOA THAT CHANGES WITH DISTANCE. In your above example, "(3.6:100, 7.2:200, 14.4:300, etc)," it is wrong. The measurement is actually linear rather than exponential. Let's see if I could make sense of it using the same logic. This will assume 1MOA = 1"

= 1MIL:100yds, 1MIL:200yds, 1MIL:300yds

= 3.6MOA:100yds, 3.6MOA:200yds, 3.6MOA 300yds

= 3.6":100yds, 7.2":200yds, 10,8":300yds

ar15barrels

05-10-2008, 5:23 AM

Why would yardage be irrelevant, if a mil unit of measure is exponential at every 100yrds (3.6:100, 7.2:200, 14.4:300, etc) 3.4mil @ 100yrds is much smaller than 3.4mil @ 400 yrds, No?

No.

Mils and MOA are units of angular measurement, not distance.

1 Mil = roughly 3.6 MOA no matter what distance.

Now, the distance that 1 Mil or 1 MOA subtends is certainly different as range to target changes.

3.4 Mil at 100yds would subtend 12.8 inches at 100yds and it would subtend 51.4 inches at 400yds, but 3.4 Mil = 3.4 Mil no matter what the distance is.

Mils do not convert to inches without knowing the distance to target, but Mils equal Mils no matter the distance.

capiche?

Randall has it correct. MIL to MOA relationship doesn't change over distance. 1 MIL will always = 3.438 MOA (True MOA, not Shooters MOA) whether it's at 1 foot or 1000 yard. Inches is a linear measurement and will increase in relation to MIL and MOA over distance.

Cool, thanks for the help guys!

-Allan

BallisticTech

05-12-2008, 5:49 AM

There are 3.438 MOA per Mil. Therefore, 3.4 Mils X 3.438 MOA = 11.69.

I have noticed a few posts using the number 3.6. 3.6" represents the distance between the center of one mildot to the center of the next mildot at a distance of 100 yards.

3.6" = 1 mil at 100 yards

7.2" = 1 mil at 200 yards

10.8" = 1 mil at 300 yards and so forth

However, the question is asking for MOA, not inches.

Sincerely,

Aaron Royal, Owner

Ballistic Technologies, LLC

www.BallisticTech.com

wildcard

05-12-2008, 8:01 AM

It always suprises me who's reading these forums :)

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