At What Distance Should I Zero My AR-15? Let’s Break It Down

By Your Friendly Outdoors & Gun Gear Expert - May 2025

If you’re like me, dialing in your AR-15’s zero can feel like a bit of a guessing game. Should you zero at 25 yards? 50? Maybe 100 or even 200? Or what about that classic 36/300 zero? If you’ve been scratching your head over which distance will help you hit your target dead-on every time, you’re in the right spot. Let’s chat about the best zero distances for your AR-15, so you can get out there with confidence, no stress involved.

Why Zeroing Your AR-15 Matters

First up, zeroing isn’t just some shooting range ritual—it’s the foundation of accuracy. When your AR-15 is zeroed correctly, your bullet will land exactly where your sights or optic are pointed at a given distance. Whether you’re out hunting, plinking, or prepping your gear for tactical use, a proper zero means less guesswork and more hits.

The Classic 25/200 Zero: What’s the Deal?

One popular method is the 25/200 zero, where you zero your rifle at 25 yards, but the bullet is also on target again at 200 yards. This works because of the bullet’s trajectory—it crosses your line of sight twice. This zero is a favorite for many because it covers a broad range without needing to adjust your sights, making it versatile for general shooting and home defense.

100-Yard Zero: The Go-To Standard

Most folks zero at 100 yards simply because it’s a straightforward benchmark. It’s easy to measure, and many ranges have a 100-yard distance. The downside? Your bullet will hit slightly high or low at other distances, so you might need to adjust your holdover or use a ballistic reticle at longer ranges.

Other Zeros: 50 Yards, 36/300, and Beyond