Amazing...
Many years ago, and after a m.l. shoot back in Minnesota, a good friend brought out a little mortar he just got to show me how it worked. He set it up, poured in a heaping capful of 2fg (cap that was on the can of GOEX) for the charge, and dropped a Campbell's soup can filled with concrete down the bore for the projectile. He set a fuse, lit it, and we stepped back. I couldn't believe how far that can launched out and up in the clear blue! He also had a streamer attached to the base of the can so you could track very well its path up and over the range. It gave me a whole sobering perspective (no, we didn't have a beer until after...) on how powerful black powder really was/is.
What do you suppose a heaping capful of powder weighs? Hundred grains? Hundred and 10? Unbelievable how far that can traveled.