The New Huntmastersbbs!: MOA?

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Posted by Krustyklimber (Member # 72) on February 02, 2003, 06:45 PM:

Much like Leonards "What do you call 'em" thread what else does MOA stand for to you?

I like Middle Of Animal.

Or if I'm shootin' handguns I say I can't shoot My Own Ass.

The little woman says it's Men Often Annoy.

Let's hear yours.

Jeff

Posted by Leonard (Member # 2) on February 02, 2003, 07:56 PM:

I don't have one; but I am quite familiar with "MOC".....minute of coyote.

Good hunting. LB

Posted by Redrider (Member # 79) on February 03, 2003, 09:14 AM:

I can think of a few:

miss only animals = buck fever
minute of ant = tackdriver
miss on akayshun = me
middle of Alabama = not a tackdriver

i aint as smart as i thunk i r [Razz]

[ February 03, 2003, 09:15 AM: Message edited by: Redrider ]

Posted by Tusero (Member # 111) on February 23, 2003, 12:01 AM:

Hi Ya'll! MOA means Minute Of Angle, and it is the term used to describe the clicks on a scope for adjustment for windage and elevation.

I am a machinist by trade and it comes from the division of an angle. IE: there are 360 degrees in a circle. Each degree is divided by 60 minutes, hence minute of angle.

Hope this helps with the explanation?

But it could also mean "My Old Ass" aas I am an "old fart!"

Posted by varmit hunter (Member # 37) on February 23, 2003, 02:17 PM:

Howdy Tusero. Glad to see another machinist on board.

Posted by Krustyklimber (Member # 72) on February 23, 2003, 04:18 PM:

Welcome Tusero!

Thanks for the explaination, but I was joking! [Big Grin]

hahaha

I was a chinist too but now I are not. [Wink]

Stupid CNCs! Stupid robots! Stupid NAFTA!
But I digress...

Actually I got to thinking and thought I'd read where, and how, they decided to divide the world into 360° (I asked a jr high school science teacher if they had to add 120° when Colombus discorvered America?!? lol), so I hit Google and did a search, here's some of the stuff I found.

The use of degrees to measure angles harks back to the Babylonians, whose sexagesimal* number system was based on the number 60. 360° likely arises from the Babylonian year, which was composed of 360 days (12 months of 30 days each).
The degree is further divided into 60 arc minutes, and an arc minute into 60 arc seconds.

The transit and theodolite are used by the surveyor* to measure both horizontal and vertical angles. While the purpose of the two is similar, as a general rule a theodolite is more
accurate than a transit. However, there is no specific rule as to when one definition ends and the other begins. Generally, these instruments have a minimum accuracy of one minute of angle and some very precise theodolites will measure angles to an accuracy of one-tenth of a second of angle. To put these accuracies into perspective, at a distance of one mile, one minute of angle covers about 1.5 feet. At a distance of one mile, one-tenth of a second of angle covers about 0.003 feet.

This aiming technology was first applied to cannons and then to rifle scopes, when the accuracy of Vernier sights were surpassed by sturdy enough optics to be used on rifles.

*notes

*Sexagesimal:
The base-60 notational system for representing real numbers. A base-60 number system was used
by the Babylonians and is preserved in the modern measurement of time (hours, minutes, and
seconds) and angles.

*surveyor
In this context the surveyor is a military term for the guy who helped to aim a cannon, or mortar fire.

I hope this has further enlightened us on where MOA comes from...

Now make up some more jokes guys! [Big Grin]

Mmmm old ammuntion = Leonards recent problem

My ol'gun's accuracy = sellers remorse

Jeff

[ February 23, 2003, 04:34 PM: Message edited by: Krustyklimber ]

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