How to Zero an ACOG Scope » ACOG Zero Target

How to Zero an ACOG Sight: A Step-by-Step Guide

Are you having a hard time zeroing an ACOG sight? You’re in the right place. This post will guide you through the straightforward steps to zero an ACOG sight, making sure you hit your targets accurately. While zeroing isn’t very complicated, it does require practice.

Understanding Zeroing

Zeroing a Trijicon Advanced Combat Optical Gunsight (ACOG) scope is crucial for accurate shooting. Zeroing means adjusting the weapon sight until the point of aim (POA) matches the point of impact (POI). A properly zeroed ACOG can significantly improve your shooting accuracy.

Why ACOG Sights?

ACOG optical sighting systems are popular for their illuminated reticles that facilitate quick target acquisition. Reticles come in various shapes—such as chevrons, triangles, crosshairs, or circles.

If an ACOG is properly zeroed, you can hit a target with a given degree of accuracy (MOA). It is worth mentioning that MOA is different for each weapon and type of ACOG you are using.

What Do You Need?

To zero an ACOG, gather the following items:

ACOG – Find a quality ACOG here

Flathead screwdriver- see our scope mounting torque wrench reviews here
Table / Stand / Shooting bench
Weapon rest or sandbags

Zeroing target printed with 1-inch squares – example here
Binoculars or spotting scope

Steps to Zero an ACOG

Unload Your Weapon
- Ensure the weapon is unloaded by pulling back the charging handle and verifying it visually.
Mount the ACOG
- Position the ACOG mounting base on the rails atop the receiver.
- Tighten the screws with your fingers first, then use a screwdriver for a quarter turn.
Adjustment Caps
- Unscrew the adjuster caps on the top and right sides of the ACOG.
- Load the weapon with one round, aim, and fire. This sets the ACOG in place.

Set Up Your Shooting Position
- Place your weapon rest or sandbags on the table.
- Mount your zeroing target at a 100-meter distance.
Fire a Test Round
- Load a full magazine and fire at the center of the target.
- Use binoculars or a spotting scope to locate the point of impact.
Adjust Elevation
- Measure the vertical distance from the impact hole to the target center by counting squares.
- Turn the elevation screw one click per 1/4 inch needed to adjust the POI. Follow the D (down) or U (up) markings.
Adjust Windage
- Measure the horizontal distance to the target center.
- Turn the windage screw to adjust the POI: L (left) or R (right).
Test and Repeat
- Fire another round at the target center; adjust as necessary.
Confirm Zero
- Replace the target and repeat until shots cluster within the MOA for your sight and are centered on the target.

Conclusion

In this guide, we’ve outlined 9 simple steps to zero an ACOG scope. Although it’s not overly complex, it involves practice to master. If you encounter difficulties, consider consulting with a qualified shooting instructor for expert advice.

If you are still having a hard time, we recommend consulting a qualified shooting instructor. This ensures that you get the best shooting advice.

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