The guy shooting is Wendell Diller, the inventor of this concept and the barrel is his, not Metro's version of it. Here is how it all started according to Wendell.
He and LP Brezny used to hunt crows in an area that at the time was very rural. As time went by, it became less so. The more folks that moved in, the more complaining about the noise from a normal shotgun. Wendell got tired of the law showing up and while the law always said they were legal, Wendell tired of the interruptions. Thus the invention of the 8' gun. Some people ask why 8'. It was the largest gun Wendell could fit into his Volare wagon without having to take the gun a part. Wonder if he has a case for it as I have only seen it in the slough uncased and since he only paddles a canoe, I believe this to be legal in WI and MN.
Wendell works at Magnepan (electrostatic speakers - Magnaplanar) and understands sound. From what he has told me, he tried different barrel lengths and put porting holes at different spacing on the top of the barrel. What he was shooting that day in the video is the result of his testing. I also believe he loads his own shells and loads them to be subsonic (not sure about this). So the combination of the shells and the barrel is what you can hear, or not hear, in the video.
I shot the gun on a recent hunt and it is as quiet as the video shows. There is definitely a learning curve to shoot this thing as swinging a barrel this long is a challenge. Or it was a challenge to me. I believe Metro claims that the kick is diminished. I don't know if I agree with that statement.
According to the story told, Mr. Brezny took Wendell's concept long gun barrel and patented the idea. Basically stole it from him. Then he moved back to South Dakota and started his Metrogun company. I also heard that there is a basic flaw in Brezny's patent that if argued in front of a court, would be invalidated. This I learned from reading up on the subject, not hearsay from any individual.
Cool concept and quite the sight in the field for sure. And the person behind is as interesting as the story itself. The smoke rising in the foreground is Wendell's wife, Galina, cooking the morning's breakfast. I don't recall how many years ago it was but she came from Siberia to marry Wendell. Very smart lady, organic chemist I believe, who I found out works here. Small world.
Anyway, was a fun few days shooting with them and making some high speed vidoes of some of Wendell's new stuff.
Mark W