That reminds me about Hollywood. You're right about black powder burning fast. Getting back to Hollywood. You know how in westerns they always make a trail of black powder to a keg of powder. They light the powder, and you see it burning slowly along the trail of powder to the keg, and the keg blows up.
The problem is you know they were talking about black powder by the timeline. Black powder wouldn't do that. It would burn so fast it would just be a long flash, and the guy would blow himself up.
What they use in the movies to make it burn slow is smokeless powder. Not even invented yet.
Hollywood...you got to love them.