EP 188: Effects of Mounting a Suppressor

Published on May 28, 2025
Duration: 22:04

This episode of LongRange Pursuit podcast, featuring Mac Simpson from Gunwerks, delves into the practical effects of mounting a suppressor on a rifle. Key takeaways include the necessity of re-zeroing due to point of impact shift, the consistent return to zero with quality suppressors, a slight increase in bullet velocity, an improvement in rifle precision, and significant recoil reduction. The discussion highlights that while suppressors offer benefits, understanding their impact on rifle harmonics and ballistics is crucial for optimal performance.

Quick Summary

Mounting a suppressor on your rifle requires re-zeroing due to a 'point of impact shift.' Quality suppressors offer a consistent shift and good return to zero. They generally improve rifle precision by about 0.25 MOA and significantly reduce felt recoil, making shooting more comfortable.

Chapters

  1. 00:00Introduction to Suppressor Effects
  2. 01:49Do I Need to Re-zero with a Suppressor?
  3. 04:06Return to Zero with Suppressors
  4. 06:04Mechanism Behind Point of Impact Shift
  5. 08:50Does a Suppressor Change Ballistics?
  6. 11:32Will a Suppressor Affect Accuracy (Precision)?
  7. 13:34Why Suppressors Improve Precision
  8. 16:34Does a Suppressor Reduce Recoil?
  9. 20:36Conclusion & Future Episodes

Frequently Asked Questions

Do I need to re-zero my rifle after mounting a suppressor?

Yes, it is highly recommended to re-zero your rifle when first mounting a suppressor. This accounts for the 'point of impact shift' that most suppressors cause. Documenting this shift allows for consistent adjustments when the suppressor is removed or re-attached.

How does a suppressor affect rifle precision (group size)?

Suppressors generally improve rifle precision, leading to tighter groups. Experts estimate an average improvement of about 0.25 MOA when a suppressor is properly mounted, turning a 3/4 MOA rifle into a 1/2 MOA rifle.

Does a suppressor reduce recoil?

Yes, suppressors significantly reduce felt recoil. While a dedicated muzzle brake might offer more recoil mitigation, a suppressor provides a substantial reduction in impulse, making shooting more comfortable and controllable.

What causes the point of impact shift when using a suppressor?

The point of impact shift is primarily attributed to changes in the rifle's harmonics and the way gases interact with the bullet as it exits the barrel. While some barrel flex might occur, the harmonic disruption is considered the main factor.

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