“Would black powder be as powerful as the gun powder in the fireworks?”
The fireworks powder would be slower and would be less suitable than real black powder. I think he just shot this stuff off as the explosive used in the bombs was high speed explosive. They apparently had access to military grade explosives and used them against the police.
Black powder is a low speed explosive and most people over rate the power of it. In the breech of a gun it works fine but in a bomb is not nearly as effective as military grade stuff.
He may have intended the fireworks for some kind of celebration.
We heard ‘military grade’ explosives but we probably will never know. The improvised grenades they were throwing at police may have been these fireworks mortar shells with the launch charge removed.
Black powder really worked well in the exploding mortar and artillary shells at Vicksburg. I believe black powder would work extremly well in a “pressure cooker bomb”. When I first saw the explosion I thought it mat be a black powder bomb. Now the’re probably going to come for my Pyrodex.