Do you remember what Minecraft version you used? Maybe TNT mechanics changed a bit, because I assumed from the date of this vid you used 1.12.2. Then when I tested it, some TNT was shot and landed too close to the muzzle and the cannon kept blowing up. I have to build it high up in the air and remove any bottom muzzle decoration for it to be reusable. Is there any fix for it to be ground-level? I don’t mind it being aerial, but it’s just a question I have.