A very big shotgun shell, with a whole lot of extra gunpowder shoved in there.
I never got to hear it shoot but I have had it in a security role over me at least twice.
Awesome.
I hear them practice at Warren Grove in New Jersey. They sound like God’s angry chain saws only louder and coming from the sky. I cant even imagine the horror being on the recieving end.
It,s impressive, finished some target rehab and demo work on the bombing range at FT Chaffee back in the day, range control let us hang out and watch the show. The 188th FW (Warthogs) came thru a few hours later and 3 days of work was gone in a few seconds.