What is MOA ? An easy to understand explanation

Published on November 17, 2014
Duration: 5:37

This video provides an accessible explanation of Minute of Angle (MOA), a crucial concept for understanding rifle accuracy and scope adjustments. It clarifies that 1 MOA is approximately 1 inch at 100 yards, scaling linearly with distance. The guide details how MOA relates to scope turret clicks (e.g., 1/4 MOA per click) and red dot sight sizes (e.g., 4 MOA dots), offering practical insights for shooters.

Quick Summary

MOA stands for Minute of Angle, a key term in firearm accuracy. A simple rule is 1 MOA equals roughly 1 inch at 100 yards, scaling linearly with distance. Scope turrets often use 1/4 MOA clicks (0.25 inches at 100 yards), and red dot sights are specified by dot size (e.g., 4 MOA covers 4 inches at 100 yards), impacting precision vs. speed.

Chapters

  1. 00:00Introduction to MOA
  2. 01:02The Basic Definition of MOA
  3. 02:48Scope Turret Adjustments (1/4 MOA)
  4. 03:26Red Dot Sight Sizes (4 MOA)

Frequently Asked Questions

What does MOA stand for and what is its basic meaning in shooting?

MOA stands for Minute of Angle. As a practical rule of thumb, 1 MOA is approximately equivalent to 1 inch at 100 yards. This measurement scales linearly, so at 200 yards, 1 MOA covers 2 inches, and at 300 yards, it covers 3 inches.

How do MOA clicks on scope turrets work?

Many rifle scopes feature turrets with click adjustments measured in MOA, commonly 1/4 MOA. This means each click moves the point of impact by 1/4 inch at 100 yards. To adjust impact by 2 MOA (2 inches at 100 yards), you would need 8 clicks (2 MOA * 4 clicks/MOA).

What is the significance of MOA size for red dot sights?

Red dot sights are often rated by their dot size in MOA. A 4 MOA dot covers a 4-inch circle at 100 yards, which is good for fast acquisition in home defense. A smaller 2 MOA dot covers a 2-inch circle at 100 yards, offering more precision for longer-range shots.

How does MOA relate to rifle accuracy?

MOA is a standard measure of rifle and ammunition accuracy. A rifle capable of sub-MOA accuracy can consistently group shots within a 1-inch circle (or less) at 100 yards, indicating high precision.

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