9mm suppressed. Supersonic VS subsonic sound. @DeadAirSilencers Mojave 9 silencer

Published on March 21, 2025
Duration: 0:26

This demonstration, led by an experienced instructor from Ghost Mountain Group, showcases the audible difference between suppressed 9mm supersonic and subsonic ammunition using a Dead Air Mojave 9 silencer. The video highlights safe firearm handling and provides a practical comparison for those interested in suppressed shooting.

Quick Summary

The primary audible difference between suppressed supersonic and subsonic 9mm ammunition is the sonic crack. Supersonic rounds produce this crack as they exceed the speed of sound, while subsonic rounds eliminate it, resulting in a quieter overall sound signature primarily from the muzzle blast.

Chapters

  1. 00:00Intro & Ammunition Setup
  2. 00:05Suppressor & Firearm Setup
  3. 00:13Firing Demonstration
  4. 00:20Listener Feedback

Frequently Asked Questions

What is the main difference in sound between suppressed supersonic and subsonic 9mm rounds?

The main audible difference is the sonic crack. Supersonic rounds produce a distinct crack as they break the sound barrier, even when suppressed. Subsonic rounds travel below the speed of sound, eliminating this crack and resulting in a quieter overall sound.

Which 9mm ammunition type is quieter when suppressed?

Subsonic 9mm ammunition is generally quieter when suppressed because it does not produce the sonic crack associated with supersonic rounds. The sound is primarily the muzzle blast, which is further reduced by the suppressor.

What suppressor was used in the demonstration?

The demonstration utilized the Dead Air Mojave 9 silencer, a pistol suppressor known for its effectiveness in reducing sound and muzzle flash for various handgun calibers.

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