How to properly Zero your red dot

Published on October 31, 2024
Duration: 0:32

This video explains the importance of proper red dot sight zeroing for firearms. It highlights the common mistake of zeroing at 5 yards, which leads to inaccurate shots at longer distances due to the sight's height over bore. A 15-yard zero for 9mm handguns is recommended for a flatter trajectory, hitting the point of aim at 15 yards and often again at 50 yards.

Quick Summary

For most 9mm handguns, a 15-yard zero is recommended. This setup typically results in a second point of impact at 50 yards, creating a flatter and more predictable trajectory across common engagement distances, unlike a 5-yard zero which causes significant over-impact at range.

Chapters

  1. 00:00Basics of Zeroing Explained
  2. 00:09Why the 5-Yard Zero is a Mistake
  3. 00:15The 15-Yard Zero Advantage for 9mm

Frequently Asked Questions

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

For most 9mm handguns, a 15-yard zero is recommended. This distance provides a good balance, allowing the bullet's trajectory to align with the point of aim at 15 yards and often creating a second point of impact around 50 yards for a flatter shooting experience.

Why is zeroing at 5 yards a bad idea for red dot sights?

Zeroing at 5 yards requires a steep adjustment angle due to the sight's height over bore. This steep angle causes the bullet's trajectory to be significantly higher than your point of aim at further distances, leading to missed shots.

How does height over bore affect zeroing a red dot?

Height over bore refers to the distance between your sight's line of sight and the firearm's barrel. This difference means the bullet starts below the line of sight and arcs upwards. Zeroing at a specific distance compensates for this arc and the height difference.

What is the benefit of a 15-yard zero for a 9mm handgun?

A 15-yard zero for a 9mm handgun typically results in a flatter trajectory. You'll hit your point of aim at 15 yards, and often have a second point of impact near 50 yards, making it more forgiving for common self-defense or target shooting distances.

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