Anybody need a good recipe for gun cotton, that has just that extra bit of "whoomp"?..... Are is Tennessee deemed a dangerous enough place...? Patrick Sounds interesting Patrick, but I think I will stick to black powder. I have several pounds of that on hand for use in my "Kentucky" long rifle and the Coehorn mortar. I have made several nice brass cannon models over the years, but these were just for shelf displays for the most part although most could be fired if the need arose. Doubt that they would withstand gun cotton and besides, I got plenty cotton, but no nitric acid. A fellow by the name of Ross Winans tried to interest the Yankee war department in a steam cannon back in 1862, but he didn't meet with any success on that idea. I have never seen any drawings or photographs of the steam cannon or I might build myself a model of it. With the boiler pressures available at that time, it must have had a monstrous long barrel ("Tube" as artillerists call them) to be able to obtain any velocity and range. Possibly it was intended to be mounted on a rail car? That would solve the transportation problem considering the size and weight of the boiler. I could build the Winans cannon in 1/8th scale and pull it behind my American 4-4-0 at the Mid-South track near Nashville. Would make quite a show!! Jesse in Tennessee where we ain't forgot the "War of Northern Aggression" and never will. MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.