Sound like it should only have been tested deep in the Nevada desert, fired by Chumlee.
Yep, sounds like a the Pawns Stars misfired! :)
When I was a kid in 1958, my nephew and I made a mortar of an old driveshaft and a propped up aluminim chair. We filled it with black powder (PROBABLY just a tad too much)and put a quarter pound ball bearing in it. We had aimed at an empty field about an eighth mile away, but it went of and kicked the aluminum chair away and went through three garages and hit my grandfathers ‘45 Packard in the fourth garage. Sheeeeeet! You wanna talk about child abuse!!!