Testing 5.56mm Suppressors

Published on May 11, 2015
Duration: 15:32

This video details a formal sound testing protocol for 5.56mm suppressors, utilizing professional equipment like the Bruel & Kjaer 2209 sound meter and adhering to Mil-Std 1447D. The expert-level instruction emphasizes objective data collection, establishing an unsuppressed baseline (167dB), and comparing various suppressor models, with results like the SilencerCo Specwar and Griffin Armament Recce 5 achieving 133dB.

Quick Summary

Expert-led testing of 5.56mm suppressors adheres to Mil-Std 1447D protocols using a Bruel & Kjaer 2209 sound meter. The unsuppressed 16-inch AR-15 baseline was 167dB, with the SilencerCo Specwar and Griffin Armament Recce 5 achieving the lowest suppressed levels at 133dB.

Chapters

  1. 00:10Introduction to Suppressor Testing
  2. 00:46Testing Equipment and Protocol
  3. 01:40Test Setup and Ammunition
  4. 03:54Unsuppressed Baseline Testing
  5. 04:34Suppressor Testing Results
  6. 13:17Conclusion and Future Tests

Frequently Asked Questions

What is the standard protocol used for testing suppressor sound levels in this video?

The video follows Mil-Std 1447D, a military standard protocol for testing the acoustic signature of small arms. This ensures accuracy and reliability by standardizing equipment placement, calibration, and measurement procedures for decibel reduction.

What was the unsuppressed sound level of the 16-inch AR-15 used in the test?

The unsuppressed baseline sound level for the 16-inch Midwest Industries AR-15, using IWI M193 Ball ammunition, was recorded at 167dB. This measurement serves as a critical reference point for evaluating suppressor effectiveness.

Which 5.56mm suppressors performed best in the sound reduction test?

In this specific test, the SilencerCo Specwar and Griffin Armament Recce 5 demonstrated the best performance, both achieving an average sound level of 133dB, indicating a significant sound reduction compared to the unsuppressed baseline.

What equipment is essential for accurate suppressor sound testing?

Accurate suppressor sound testing requires professional-grade equipment, including a calibrated impulse sound meter (like the Bruel & Kjaer 2209), a consistent firearm platform (e.g., Midwest Industries AR-15), and standardized ammunition (e.g., IWI M193 Ball). Proper meter placement and calibration are crucial.

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