Why Is It Still Loud?

Demonstrating how suppressors work and why they often do not totally silence anything. The rifle is a .300 Blackout and the suppressor is the Banish 30 Gold.
Note: Apparently, the sound at the muzzle is not just air rushing back in so fast; it's the release of the built-up gases being released, as well. I've never claimed to be a physicist, even though my degrees from MIT, Stanford, Vanderbilt, Harvard, and Yale indicate as much! :-) Anyway, the main point we're trying to make is about why suppressors do not totally eliminate the sound, especially with supersonic ammo, and how that's still a useful thing in many circumstances.
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Hickok45 videos are filmed on my own private shooting range and property by trained professionals for educational and entertainment purposes only, with emphasis on firearms safety and responsible gun ownership. We are NOT in the business of selling firearms or performing modifications on them. Do not attempt to copy at home anything you see in our videos. Firearms can be extremely dangerous if not used safely.