How to Sight In a Handgun Red Dot

Published on August 10, 2023
Duration: 5:34

This guide details the process of sighting in a handgun red dot optic, emphasizing periodic checks and proper zeroing techniques. It covers co-witnessing with iron sights, selecting the correct zero distance and ammunition, making mechanical adjustments, and confirming the zero through practical application. The instruction highlights the importance of a shooter-specific zero that accounts for individual grip and trigger mechanics.

Quick Summary

To sight in a handgun red dot, start by co-witnessing with suppressor-height iron sights. Choose a zero distance based on application (e.g., 25 yards) and use your duty ammunition for final adjustments. Analyze shot groups, make incremental optic adjustments, tap the optic to settle internals, and confirm the zero. Remember to account for shooter-specific mechanics for a personalized zero.

Chapters

  1. 00:00Introduction and Periodic Zeroing
  2. 00:30Co-witnessing as a Starting Point
  3. 00:50Choosing Zero Distance
  4. 01:27Ammunition Selection
  5. 02:04Initial Range Testing
  6. 02:30Analyzing Groups and Adjusting
  7. 03:09Mechanical Adjustments
  8. 03:43Final Confirmation and Practice
  9. 04:28Mechanical vs. Shooter Zero

Frequently Asked Questions

How often should I check the zero on my handgun's red dot sight?

It's recommended to periodically check your handgun's red dot zero, especially after replacing the battery or at least once a year, to ensure consistent accuracy for reliable performance when you need it most.

What is the best distance to zero a handgun red dot?

The ideal zero distance depends on the firearm's intended application. Home defense guns might be zeroed at shorter ranges, while competition or general-purpose handguns are often zeroed at 25 yards for a versatile point of aim.

Should I use practice ammo or duty ammo to zero my red dot?

For the most accurate and reliable zero, always use your intended duty or carry ammunition (e.g., 147gr) for the final sighting process, as different bullet weights have distinct ballistic trajectories.

What is co-witnessing with iron sights?

Co-witnessing involves aligning your red dot sight with your firearm's suppressor-height iron sights. This allows you to use the irons as a backup or as an initial 'bore sight' to quickly get your shots on target.

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