Bountyhunter, my cannon has a 1" bore, I shoot steel balls from an industrial supply house. Have never had any trouble with them. Have used some of them several times, even after firing them into a steel plate. The price is right, about $20.00 for 15. McMaster Carr has 1 1/2" steel balls for $4.89 each. Have no idea how that compares to iron balls. h4198
I shoot wheel weight lead out of my 1 inch gun and have never had any problems. I just go to the local tire shop and they give me a 5 gallon bucket full for free. It is a little more work because you have to scim off all the steel and other impurities but and it is not good to shoot through a riffled barrel but it works great in my smoothbore. :m2c:
I dont have the catalog handy, but there is a metal works company in Dallas that stocks cast iron balls for fence decorations of all different sizes. Last I remember they were about $85 per 100. Hern Iron works advertized at one time that they had cast iron balls. Dont remember the price.
I just didnt know if the lead would be enough heavier that it would raise the pressure beyond safe or not.
I took my barrel to my ranch and fired 1-1/2 oz of pyrodex in it with a couple sheets of newspaper rammed in front. It made a real nice sound. It also scared 200 head of steers I had in the feedlot and ran them through the fence. I havent shot it there since.......