Why Is It Still Loud?

Published on August 1, 2024
Duration: 8:52

This video explains why suppressed .300 Blackout rifles can still be loud. The primary noise source, beyond muzzle blast managed by suppressors, is the supersonic crack of the bullet. Using subsonic ammunition, like the 220-grain Underwood rounds demonstrated, significantly reduces noise by eliminating this crack, making the firearm much quieter.

Quick Summary

A suppressed .300 Blackout rifle can still be loud due to the 'supersonic crack' of the bullet breaking the sound barrier. Suppressors manage muzzle blast but don't slow the bullet. For maximum quietness, use subsonic ammunition which travels below the speed of sound, eliminating the crack.

Chapters

  1. 00:00Intro: Suppressed .300 BLK Loudness
  2. 01:16Gunshot Noise: Muzzle Pop vs. Sonic Crack
  3. 03:46Benefits of Suppressors
  4. 05:31Subsonic Ammo Demo & Results
  5. 07:20Conclusion: Subsonic for Quiet

Frequently Asked Questions

Why is a suppressed .300 Blackout rifle still loud?

Even with a suppressor, a .300 Blackout rifle can be loud because suppressors mainly reduce the muzzle blast. The primary noise source remaining is the 'supersonic crack' created when the bullet travels faster than the speed of sound.

What is the difference between muzzle blast and supersonic crack?

Muzzle blast is the noise from expanding gases exiting the firearm's muzzle, which suppressors effectively reduce. The supersonic crack is the sound wave generated by the bullet itself breaking the sound barrier, which suppressors do not eliminate.

How can I make a suppressed .300 Blackout quieter?

To achieve maximum quietness with a suppressed .300 Blackout, use subsonic ammunition. Subsonic rounds travel below the speed of sound, eliminating the sonic crack and significantly reducing the overall noise signature.

What are the benefits of using a suppressor?

Suppressors offer several benefits, including significant hearing protection for the shooter and bystanders, reduced signature (visual and audible) for tactical or hunting applications, and an overall more comfortable shooting experience.

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