The end game is to bury the tube in a pirate cannon prop, for a boating pirate party in a few months. Actually launching projectiles is probably not going to be a major part, as the sound and effects will be the main part. I've been running it at 80psi with about a cup of water and no projectile and...

Ok, I appreciate the replies, and wanted to throw out another observation- My barrel is 24 inches, when I load a projectile, and push it down the barrel say 22 inches or so- I get a typical pop sound to it. If I only push the projectile down 4 inches or so, I get a much deeper tone and only a mild d...

But nothing about the diameter of the barrel? I was hoping some sort of a flare or extra wide barrel might do it. Along the lines of a megaphone...

thanks for taking a second... I'm new to this and couldn't see an answer while searching the forum, so I thought I'd throw my question out there. I'm looking to change the tone of my shot. Essentially, I would like more of a boom of a cannon than the pop I'm getting now. I'm currently set up with a ...