Late to the party but FWIW, the law is written as an AND. A medium sized potato leaving the barrel at 500 FPS has a bit over 3kJ of energy, so that's fine. A 2" barrel at the same velocity would be 1.6kJ. It would have to be shooting over 1200 fps to be prohibited. A 20mm slug of a potato is going t...

Built this for my volunteer FD. We're going to be using it to launch a throwline over a roof and pull over an anchor rope when dealing with flue fires next season. https://www.dropbox.com/s/8t20i30crx31x6z/258915904_675649433579920_6647473133214714360_n.jpg?raw=1 https://www.dropbox.com/s/kf8kcttd7a...