ordy
US Veteran
The title says it all except my feeble mind just can't grasp the concept. Can someone please explain it and how it relates to point of impact in simple terms?
please explain 'minute of angle'
- Thread starter ordy
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It simply means (approximately) the angle which would include ("subtend" for y'all mathematicians) one inch at one hundred yards. Therefore also 2'' at 200yd, half an inch at 50 yd, etc.
OK Hog Shooter
Member
If you'll give me a minute... I'll tell ya the angle. 
(Sorry... I couldn't resist!) I'd like a layman's explanation as well.
Blessings,
Hog
(Sorry... I couldn't resist!) I'd like a layman's explanation as well.Blessings,
Hog
44wheelman
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At 100 yds, 1 minute of rotation (or 1/60 of a degree) is 1" (1.0472" to my quick calculation)
ordy,
If you shoot at 100 yards and all the holes in your target are within an inch of one another, in a tightly clustered group (could all be covered by a 1" diameter disc), you are shooting "minute of angle" (or less) groups.
If the group is clustered in a 2 inch span at 200 yards, you are still shooting minute of angle groups. 3" at 300, 4" at 400, etcetera.
If you're a "cannon cocker" you might equate it with circular probability error.
Mike
If you shoot at 100 yards and all the holes in your target are within an inch of one another, in a tightly clustered group (could all be covered by a 1" diameter disc), you are shooting "minute of angle" (or less) groups.
If the group is clustered in a 2 inch span at 200 yards, you are still shooting minute of angle groups. 3" at 300, 4" at 400, etcetera.
If you're a "cannon cocker" you might equate it with circular probability error.
Mike
The math answer
A circle has 360 degrees [ ° ], on a clock there is a 15° angle beween the numbers and a 6° angle between the minutes. 1° equals 60 minutes and 1 minute equals 60 seconds.
A minute of angle is small. The 2 legs are 100 yards long (distance to the target), with the opposite side (group size) 1 inch long. It's like 0.1 grains of powder = 1 / 70,000 of a pound = 0.0002286 ounces, about today's interest rate on your bank savings account.
We're talking small here.
A circle has 360 degrees [ ° ], on a clock there is a 15° angle beween the numbers and a 6° angle between the minutes. 1° equals 60 minutes and 1 minute equals 60 seconds.
A minute of angle is small. The 2 legs are 100 yards long (distance to the target), with the opposite side (group size) 1 inch long. It's like 0.1 grains of powder = 1 / 70,000 of a pound = 0.0002286 ounces, about today's interest rate on your bank savings account.
We're talking small here.
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MOA (properly called minute of arc) is a term used to describe angular rotation, and is applied to many different subjects (shooting, astronomy, surveying, and etc) to describe size of an object or a distance between two points ..... at any distance.
It's used by saying an object or space is X degrees/minutes/or seconds of arc in size, or X distance from another object.
When used in shoting it is many times called "minute of angle" and is used to describe a circle of almost 1" at 100 yards, 2" at 200 and so on, the a firearm, shooter and ammo are capabe of staying within when they hit their target.
It is also used to describe the change in point of aim for each click of a scope's turret.
For more info see: Minute of arc - Wikipedia, the free encyclopedia
It's used by saying an object or space is X degrees/minutes/or seconds of arc in size, or X distance from another object.
When used in shoting it is many times called "minute of angle" and is used to describe a circle of almost 1" at 100 yards, 2" at 200 and so on, the a firearm, shooter and ammo are capabe of staying within when they hit their target.
It is also used to describe the change in point of aim for each click of a scope's turret.
For more info see: Minute of arc - Wikipedia, the free encyclopedia
mc5aw
Member
So 60 MOA = 1 hour?
or about 5 feet...
LouisianaJoe
Member
I also use minute of beer can.
My shooting measurement is M.O.P.P.
Minute of paper plate. (large)
Minute of paper plate. (large)
smitret
Member
MOA
On a clock the big hand travels through 90 degrees going from 12 to 3.
Each of those degrees is divided into 60 minutes.
If the big hand of the clock is 100 yards long the tip of the hand will travel 1 inch for 1 minute of angle.
Hope that helps.
On a clock the big hand travels through 90 degrees going from 12 to 3.
Each of those degrees is divided into 60 minutes.
If the big hand of the clock is 100 yards long the tip of the hand will travel 1 inch for 1 minute of angle.
Hope that helps.
fat tom
Absent Comrade
Yeah,whatever.
f.t.
f.t.
One Minute of angle (0° 01' or one 60th of a degree) is equal to 1.0472 inches at 100 yards. Close enough to the 1 inch mark.
Here's the math
Here's the math
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JcMack
Member
After reading this thread I now know my Dad was right when he said I should try to finish 8th grade. Man am I stupid. Good thing I still got my looks.
Is it you or the gun?
I still have some memory cells left.
Did anyone factor in it may be the ammo
