Scope Ring or Mount Selection Guide - How To Measure Scope Ring Height -Are Rings Or Mounts Better

Published on February 7, 2025
Duration: 26:06

This guide details how to determine the correct minimum height for scope mounts and rings. The primary goal is to achieve a natural point of aim and proper interface with the rifle, not just to get the scope as low as possible or clear the barrel. Key factors include the optic's objective bell diameter, the rifle's rail system (continuous vs. elevated base), and the need for clearance, especially when using lens caps. For AR-15 platforms, cantilever mounts are often recommended to prevent bridging the handguard and receiver.

Quick Summary

The correct goal for scope mounting is to achieve a natural point of aim and a proper interface with the rifle, ensuring the optic aligns correctly with your eye without interference. This allows for comfortable and consistent shooting, rather than just clearing the barrel or handguard. Key factors include optic diameter, rifle rail type, and desired clearance.

Chapters

  1. 00:00Introduction: Scope Mounting Options
  2. 00:35Gary's Introduction & Common Questions
  3. 01:26The Correct Goal: Natural Point of Aim
  4. 03:11Understanding Rifle Types & Clearance
  5. 05:21Measuring Objective Bell Diameter
  6. 07:00Accounting for Lens Caps
  7. 07:50Cantilever Mounts for AR-15s
  8. 09:11Measuring for Elevated Bases
  9. 10:00Understanding Ring Height Measurement
  10. 11:04Calculating Minimum Mount Height
  11. 13:44Rings vs. One-Piece Mounts
  12. 17:25Considerations for Traditional Stocks
  13. 20:00Advantages of Chassis Rifles
  14. 22:01Optimal Height for Chassis Rifles
  15. 23:26No Perfect Formula: Trial & Error
  16. 24:43Conclusion & Further Training

Frequently Asked Questions

What is the primary goal when selecting scope ring or mount height?

The primary goal is to achieve a natural point of aim and a correct interface with the rifle, ensuring the optic aligns properly with your eye without interference. This allows for comfortable and consistent shooting, rather than just clearing the barrel or handguard.

How do I calculate the minimum height for my scope mount?

Measure the outer diameter of your optic's objective bell housing (including lens caps), divide by two for the radius, and then subtract the height of your rifle's scope base (if applicable). Add at least 0.20 inches for clearance to prevent interference.

Why are cantilever mounts often recommended for AR-15s?

Cantilever mounts are recommended for AR-15s to extend the scope forward, allowing for proper eye relief without the mount bridging the gap between the receiver and the handguard. This prevents potential point of impact shifts and ensures a stable mounting platform.

Should I try to get my scope as low as possible on my rifle?

Not necessarily. While traditional stocks might benefit from lower mounts to align with iron sights, modern chassis rifles often require higher mounts (around 1.25-1.35 inches) for a comfortable and natural cheek weld, especially with adjustable cheek risers.

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