Your Zero Is Off And You Don't Even Know It

Published on May 9, 2024
Duration: 16:50

This video highlights critical factors that can cause a rifle's zero to shift unexpectedly. It emphasizes that a loose suppressor can drastically alter point of impact and that a minimum of 10 shots is needed for a reliable zero. Issues with scope ring placement, the rifle's design like the Sig Cross, and environmental factors such as light direction are also discussed as potential causes for a wandering zero.

Quick Summary

A loose suppressor can cause a significant point of impact shift, potentially several inches at 100 yards. For a reliable zero, shoot a minimum of 10 shots, as groups can shift with more data. Improper scope ring placement and environmental factors like sunlight direction can also affect accuracy.

Chapters

  1. 00:00Loose Suppressor Impact
  2. 02:27Sample Size for Zeroing
  3. 05:51Wandering Zero and Scope Rings
  4. 10:09Scope Ring Placement Issues
  5. 11:12Direction of Light Affecting Zero
  6. 12:03Cold Bore Shift Explained
  7. 15:09Inconsistent Positioning and Parallax

Frequently Asked Questions

What is the most common cause of a sudden point of impact shift?

A significant cause of point of impact shift is a loose suppressor or muzzle device. Even a quarter-turn loose can shift your zero by several inches at 100 yards, making frequent checks crucial, especially during hunting.

How many shots are needed to establish a reliable rifle zero?

Shooting only one to three shots is insufficient for a reliable zero. The video demonstrates that the center of a group can shift as more shots are added. A minimum of 10 shots is recommended to get a true representation of your rifle's accuracy.

Can scope ring placement affect my rifle's zero?

Yes, improper scope ring placement is a common issue. Placing rings too far forward, where the scope tube begins to bell out, can prevent a secure fit, allowing the scope to slide under recoil and ruin your zero.

Are there environmental factors that can cause a zero shift?

Yes, the direction of sunlight can affect the perceived point of impact. Light entering the scope at different angles can cause a slight shift. It's advisable to zero in neutral light or be aware of the sun's position.

Related News

All News →

More Training & Techniques Videos You Might Like

More from Backfire

View all →