Testing 30 Caliber Suppressors

Published on May 26, 2015
Duration: 13:40

This video provides a scientific evaluation of various .30 caliber suppressors, conducted by an expert with high authority in firearms and tactical gear. It details testing methodologies, including the use of professional sound metering equipment and specific rifle platforms, to measure decibel reduction. The expert emphasizes hearing safety, noting that many suppressed firearms still exceed safe decibel levels, and cautions against relying on inaccurate measurement tools.

Quick Summary

Expert testing of .30 caliber suppressors reveals significant decibel reduction, though many still exceed the 140dB hearing-safe threshold. The SilencerCo Omega measured 137dB on a .308, while the SureFire SOCOM 762-RC registered 146dB. Testing also showed .30 cal cans perform well on 5.56 rifles.

Chapters

  1. 00:00Introduction to Suppressor Testing
  2. 01:32Understanding First Round Pop
  3. 03:04Wet vs. Dry Suppressor Testing
  4. 04:06Equipment and Protocol Setup
  5. 04:40.308 Suppressor Performance Results
  6. 08:31.30 Cal Suppressors on 5.56 AR-15
  7. 10:47Conclusion and Hearing Safety

Frequently Asked Questions

What is 'first round pop' in suppressed firearms?

'First round pop' is the louder sound of the initial shot from a suppressed firearm. It's caused by oxygen inside the suppressor rapidly combusting when exposed to hot muzzle gasses, creating a distinct sound signature that diminishes with subsequent shots.

Why are suppressors tested dry instead of wet?

Suppressors are typically tested dry to ensure consistent and repeatable results, as firing 'wet' (with water or grease) can mitigate first round pop but may void warranties or lead to internal corrosion, making it less ideal for objective performance evaluation.

What decibel levels are considered safe for hearing?

Prolonged exposure to sounds above 85dB can cause hearing damage. For impulse noises like gunfire, even suppressed, levels can exceed 140dB, which is well above the safe threshold, necessitating the use of hearing protection.

Can .30 caliber suppressors be used effectively on 5.56 rifles?

Yes, testing shows that .30 caliber suppressors can perform effectively on 5.56x45mm NATO rifles, often providing suppression levels comparable to dedicated 5.56 suppressors, demonstrating their versatility across different calibers.

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