Three posts in a row, maybe i will be shooting alone? Anyway, i had some time today and worked on the Prototype balloon gun barrel. It's a blast, test fired with 150g of FFFg Goex, the golf ball went about 100yds, probably would have went farther, but it hit a tree. I don't have the machine tools that Krupp had, but i managed to make a breechloader, did i say it's a blast.