Two Systems, Same Purpose
MOA (minute of angle) and MRAD (milliradian) are both units for describing an angle — how far a reticle’s markings represent at a given distance, so you can hold over or dial for drop and wind without guessing. Neither is inherently more accurate; they’re different units, like inches and centimeters.
MOA, in Practical Terms
One MOA equals roughly 1 inch at 100 yards and scales linearly — 2 inches at 200 yards, and so on. Most MOA scopes adjust in 1/4-MOA clicks. MOA’s inch-based math lines up naturally with how most American shooters already think about group size and distance.
MRAD, in Practical Terms
One milliradian equals about 3.6 inches at 100 yards and also scales linearly. MRAD scopes commonly adjust in 0.1-mil clicks. MRAD pairs cleanly with metric range and wind data, which is part of why it’s the standard in military and many competitive long-range disciplines.
What Actually Matters When Choosing
- Match your reticle and turrets — an MOA reticle needs MOA turrets, MRAD needs MRAD. Mixing systems makes holdover math needlessly confusing.
- Consistency across your gear matters more than which system you pick.
- For most hunting at typical ranges, either system works fine — this matters most past a couple hundred yards.
Compare MOA and MRAD scope options in GTO Armory’s full scopes, sights, and optics selection.
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