Last updated on April 26th, 2026
Choosing a rifle scope can be a complex endeavor with many features to consider including focal plane, magnification range, MIL or MOA and reticle just to name a few. Here you will find a quick tip to help make the choice between MOA and MRAD easier to make.
Quick Take
The Choosing a Scope in MIL or MOA is best judged by how it fits the rifle, not just by the spec sheet. Glass quality, reticle design, controls, mounting height and real-world use matter more than chasing one big headline number.
- Best use case: match the optic to the rifle?s actual job before worrying about brand hype.
- Check before buying: reticle style, eye relief, turret feel, weight and mounting requirements.
- Do not forget the mount: good rings and correct height are part of the optic system.
Provided that you are in the market for a scope aimed at your new rifle or even if looking to upgrade, it can be difficult to know which scope measurement variant to get.
Below is a great comparison photo showing the differences in the size of the measurements of MILs (Milliradian) and MOA (Minute of Angle). The image demonstrates how much the travel is in each ‘click’ of the scope turret.
One miliradian at 100 meters is equal to 10cm. One Minute of Angle at 100 yards is equal to 1.047 inches, which is commonly round down to 1 inch. MOA scope turrets are often adjustable by 1/4 (0.25) MOA increments (1/4 inch at 100 yards). Milliradian scopes are often adjustable by 1/10th (0.1) MIL increments (1 centimetre at 100 meters).
When choosing an optic in either of these measurements a good starting point is asking yourself what does your own mind measure in? If it’s centimeter and meter then use MILs or if you measure in inches and yards use MOA. It ends up being a lot easier to make adjustments without doing conversions along the way.
With either MIL or MOA, unless you’re limited by operational reasons, I wouldn’t convert back and forth to linear measurements. Stick with the system you already use and choose a scope based on that.
Related Reading on PrecisionRifle
If you are comparing options, also read our best rifle scope guide, best scope rings guide, best scope under $1000 guide.
FAQ
Why does Choosing a Scope in MIL or MOA matter?
Choosing a Scope in MIL or MOA matters because it affects the decisions you make behind the rifle. Understanding the concept helps you make better calls on setup, data, wind, elevation and realistic hit probability.
Do beginners need to understand Choosing a Scope in MIL or MOA?
Yes, but you do not need to overcomplicate it at the start. Learn the practical version first, then add detail as your shooting distance, conditions and expectations increase.
What is the common mistake with Choosing a Scope in MIL or MOA?
The common mistake is treating it like theory only. The useful approach is to connect the idea back to what you see on target, then confirm it with real shooting data whenever you can.
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