I have no idea if the guy is still in business or what his name is. He had a small foundry near Peach Bottom (lancaster county) Pa and would make bronze cannon barrels and some semi finished and finished cannons. I purchased a barrel from him yrs back at the Baltimore Antique Gun Show. 30 inches long, 1.25 bore and the barrel weighed about 80 lbs. I made a naval carriage for it. I fired it once, on July 4th, 1994, in Falls Church VA where I lived. A charge of 200 grains of 1f and a heavy cardboard wad, took a branch off the neighbor's tree and broke seven windows down the street. Needless to say, I haven't desired any additional problems after that expensive episode. I do wheel out my smaller cannon and fire it every New Year's eve. That one is a 75 bore.