Rifleman Q&A: What Does 'MOA' Mean?

by
posted on August 1, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
NEWQ&A

Q: I am new to the shooting sports, and my background is in aviation. In my field, the acronym “MOA” means “Military Operations Area.” When Air Traffic Control informs us that MOA is “hot,” we do not fly, and a “cold” announcement means we can. Does this terminology cross over to the shooting sports, and what is “DOPE?”


A: In shooting, “MOA” is an acronym for minutes of angle. The NRA definition is, “An angular measurement method used to describe accuracy capability. A minute of angle is 1/60th of a degree, and subtends 1.047" at 100 yards, which, for practical shooting purposes, is considered to be an inch. A minute-of-angle group, therefore, would measure slightly more than one inch at 100 yards, two inches at 200 yards, etc.”

From a shooter’s perspective, “dope” is a useful and descriptive word when applied to the activity of achieving downrange success. This magazine has used the phrase “Dope Bag” since at least 1921 when Col. Townsend Whelen first titled his column. Even then, it had been in use for years, referring to a sack used by target shooters to hold ammunition and accessories on the firing line. “Sight dope” also was a traditional marksman’s term for sight-adjustment information, while judging wind speed and direction was called “doping the wind.” Some shooters also use it as an acronym for “Data On Previous Engagement.”

—John Treakle, Contributing Editor

Latest

Woman covering rifle target
Woman covering rifle target

Why This DOJ Opinion on Handgun Ownership Matters

The DOJ Office of Legal Counsel recently released an opinion concluding that the federal ban on licensed firearms dealers selling handguns to 18-20-year-old U.S. citizens is unconstitutional.

I Have This Old Gun: Czech vz.27

Following World War I, Czechoslovakia needed to equip its new army, and one of its priorities was to select a service sidearm, which ultimately became the vz.27.

Rimfire M1 Refined: The Chiappa Bushranger

Italian manufacturer Chiappa is not afraid to take an original design and give it a modern twist. New for 2026, the company is taking its rimfire M1 carbine design one step further with the Bushranger.

TriStar Arms Celebrates 30th Anniversary

Established in 1996 by the father-and-son team of Gus and Ryan Bader, TriStar Arms has grown into one of the firearm industry’s most respected names in value-driven products.

Optic on an Optic: Why You Should Add a Red-Dot to Your LPVO

Why is it that, suddenly, it seems like everyone is running around with little red-dot sights mounted on top of low-power, variable optics? Well, it turns out there are reasons for that.

How Accurate are Today’s Rifles?

In just the last few decades, rifle accuracy has improved an astonishing amount, and our expectations have risen accordingly.

Interests



Get the best of American Rifleman delivered to your inbox.