Why subsonic ammunition?
Ask Chatgpt why a shotgun suppressor is less efficient than a small bore rifle suppressor such as a .223 or .243? A shotgun suppressor lacks a number of the important criteria for maximum suppression.
However, the technical shortcomings of a shotgun suppressor is offset by the HUGE advantages of a shotshell's capacity. As with Civil War weapons, subsonic lethality is achieved with massive projectiles. A small caliber subsonic rifle bullet does not have sufficient mass to harvest large game such as deer and elk. Massive 2 1/4 oz slugs in the Quiet Shotgun have killed bull elk and many deer during culling operations in Minneapolis parks. The same concept is lethal for harvesting ducks and geese. But one aspect of suppressors is often overlooked in YouTube videos -- noise.
The noise comparisons of videos are misleading. The electronic circuitry protecting the microphone and speaker does not allow for an accurate comparison of a suppressor vs. no suppressor. The only meaningful comparison is hearing the sound comparisons from a distance that is more representative of what neighboring houses would hear. For the shooter and bystanders, a suppressed shotgun is damaging to your hearing. You must wear hearing protection.
As the metal in a suppressor heats up, the noise reduction declines. So, if the rating of a 12 ga. shotgun suppressor is 20 or 21 db at the shooter's ears, that does not apply after the suppressor becomes hot. 21 db of noise reduction is still too loud for high velocity ammunition.
Since you must wear hearing protection with a suppressor, what are the advantages of a shotgun suppressor?
Well........that is a good question.
In reality, a shotgun suppressor is not needed very often. But when you do need it, it must be handy and easy to use (and for most us middle income hunters and shooters, we can't afford a suppressor that costs more than our shotguns). The Quiet Shotgun addresses all of these issues. It fits in your gun case and screws into the choke tube threads. All you need to remember is bringing along the subsonic ammunition that has larger shot and bigger payloads.