Hello, new to the group and new to building. I have always had an interest in building a cannon and finally have taken an action. After reading various sites and getting ideas I wanted to do a run down and get some other opinions. I’m basing my build off the .50cal cannon kits, but going a little overkill. I have a piece of CRS 1.75” thick. Drilling a .5” bore 7.5” deep. The overall length will be 9”. I’m keeping the walls .75” thick for safety. I’m planning on using muzzleloader round balls for projectiles. I will be drilling a 1/8”(3mm) hole for 3mm cannon fuse. The cradle/base and wheels will be done after the barrel is complete. And yes I have the room and backstop to shoot this. We have a 13 acre camp with woods and a shooting backstop. I’m a certified welder and the guys helping me are certified machinest. My question is/are: 1. Will the walls be thick enough? I’m planning on 50grains of 1-2F powder. 2. Should I use a patch like a flintlock would take? 3. Should I use anything between the ball and powder? Any other questions or concerns you may have please let me know. I want to make something cool for camp.