Well I can't find out how to do a PM but I'd like ya'll to know. Somewhere around 2014 I had finished my largest cannons. I was asking THR how much BP to throw the 3" lead balls. I found this post when trying to resurrect an old computer. He said to start with 6oz. That's about a half full sandwich bag. Otherwise known as a rather scary amount of BP. We shot the cannon with 4oz to 8oz and found that 6oz gave the best results. Almost exactly one mile. Now it's just a matter of, "Yup! that's how much were gonna use!" This I say to those who wanna watch and think I'm crazy - probably right. I make my own BP for some time now in 2.2Kg batches. I once more get the "are you crazy" look. I think I've made some 14 cannons since and plan more. In the mean while, thanks Gary! You've always been a great source of advice and direction. Your moderation of the BP makes it one of the most interesting, informative and friendly of THR. Someday I hope to meet you and shake your hand. Oh, and for all the antics of the earlier years. That was as much fun as it was therapy!