Is minute of angle the same as Minute of Arc?
The arcminute is commonly found in the firearms industry and literature, particularly concerning the accuracy of rifles, though the industry refers to it as minute of angle.
What does 1 4 MOA mean?
Minutes of Angle (MOA) is a system that is frequently used in optical rifle sights. MOA is a unit of angle, not length. The distance that the sights move the zero varies depending on distance, but MOA is constant. For example, ¼ MOA is ¼th of an inch PER 100 yards. At 100 yards, it is a ¼th of an inch.
What is a minute in a rifle?
Apply this rule: 1 minute (or 1 MOA) is one inch at 100 yards. One inch here is an approximation since it’s actually 1.047 inches. For shooting, we disregard the 0.047 inches and round it off to one. However, in long-distance shooting, it becomes applicable.