That cannon looks like a lot of fun. I dunno what clubs/ranges allow, due to never having been to one. I do all of my shooting in the pasture and woods. Welcome to okieland and OSA!
Ah there begs the questions, who's pasture and who's wood. I am building a load table for the Bowling ball mortar. I have loads out to 650 yards- 8 oz of Fa powder 650 yard. Next load to be measured, 9 ozs. Extimate for the load is 800 to 1000 yards.
I need a big long flat for impact zone where we can see impact and recover ball and take measurments-dry lake bed old stubble field.. The picture above was taken last Friday with one pound of Fg and 15 lb ball. We could not find the ball, we could see it go beyond the mile marker. We could not find the balls (5 shot) between the Mile marker and the back of the stubble field at 1 3/4 mile. There is some tall grass at 1 3/4 mile to 2 miles and we suspect that is where the balls are. We are going to go look some more this after noon.
If some body comes up with something, You will get to pull the lanyard... Standing 10 feet from a bowling ball pushed by 12 ozs of powder going off will definitely get you a check-off from your bucket list!
445 yards, 6 oz Fa blackpowder.
Definitely make the video full screen and watch down range.