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What size MOA is best for a pistol?

What MOA is best for a pistol? In the question of 3 MOA vs 6 MOA, the 6 MOA red dot sight is better for pistols— whether it's plinking, target shooting, or home defense. Given the gun's design, you most likely won't be shooting past 100 yards. A larger dot reticle will start to lose precision at farther distances.

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*Scopes Field is reader-supported. When you buy through links on my site, I may earn an affiliate commission.* Optics are one of the most important tools for a shooter, aside from his or her gun. If you see options like 3 MOA vs 6 MOA in red dot sights, don’t worry— you’re not the only one scratching your head. In this article, I will break down their differences and more. By the end of it, you’ll know which one is the best option for you.

Let’s dive in!

Let’s Talk about the Red Dot Sights

Unless you live under a rock, you’ve probably heard of the best red dot sights. Also known as reflex sights, these optics are very popular in the market today. They’re designed to be used at close to moderate ranges to make target acquisition easier and improve accurate shots.

How?

You only need to line up the target and the dot, as opposed to lining up the front sight and the rear sight. Pull the trigger and you’ll feel like Agent Liberty with tight, small groups. There is one factor that can affect that: the MOA or minute of angle. Those three letters mean a great deal.

What exactly? I’m glad you asked…

What Is Minute of Angle?

Reticle sizes are measured in milliradians (mrad or mil) or minutes of angle (moa). Both are angular measurements used in ballistics.

Red dots use MOA, so we’re going to focus on that today.

Minute of Angle is an angular measurement that expresses approximately a one-inch diameter circle at 100 yards.

The good news is: it’s relatively easy to measure.

The size of the red dot represents a specific area you can expect your rounds to land in when target shooting. When you aim that red dot in a sight picture at a distance of 100 yards, a 3 MOA reticle will look like a 3-inch circle. Meanwhile, the 6 MOA bigger dot will look like a 6-inch circle on the target.

In general for 3 MOA vs 6 MOA:

A 6 MOA larger dot is best for shorter ranges while the smaller dot of 3 MOA is better for longer or more distant shots.

Let’s talk a little bit more in detail…

3 MOA vs. 6 MOA

3 MOA

A 3 MOA reticle covers a 3″ diameter at 100 yards, 1.5″ diameter at 50 yards, and 0.75″ diameter at 25 yards. The 3 MOA reticle size is the best option if your goal is to shoot more precisely. Aim small, miss small with the 3 MOA.

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A 3 MOA dot covers less of the target and is versatile enough to be used at varying distances— a great balance between precision and speed. Let’s take the Vortex Venom as an example. This red dot sight is a magnificent optic that comes with a 3 MOA reticle. Unfortunately, a smaller dot like the 3 MOA can be hard to see— especially in bright sunlight. Also, it takes more time and focus to line up your shot at close ranges.

6 MOA

A 6 MOA reticle covers a 6″ diameter at 100 yards, 3″ diameter at 50 yards, and 1.5″ diameter at 25 yards. The 6 MOA reticle size is a more popular choice for most defensive and law enforcement situations. When you draw and look through the glass, a bigger red dot is more visible and easier to track. If you have old or tired eyes, the 6 MOA intensity helps you find the dot quicker. Let’s look at the Vortex Viper. This 6 MOA optic is one of the best Vortex red dot sights on the market. The 6 MOA is highly visible in most weather conditions. If you suffer from astigmatism, you’ll worry less about seeing a starburst or reticle smear.

On the other hand:

It’s difficult to shoot accurately at long range. Plus, the 6 MOA bigger dot is trickier to co-witness with a gun’s front sight.

Which one should I get?

Honestly, there’s no right or wrong answer between 3 MOA vs 6 MOA. When it comes to picking out a red dot or choosing the right riflescope reticle, it’s entirely up to your dot size preference and your gun’s limitations. This can be based on your gun choice, eyesight conditions (Where 6 MOA has the edge), distance to the target (3 MOA wins that), and more. You just need to find the dot size that works best for you and no longer worry about the front sight.

Lastly:

Red dots are no good if they fall off when you shoot. Don’t forget to read up on my best quick detach scope mounts review!

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