3 Types of Projectiles for Spud Guns. Foster type slug, standard bullet-shapes slug and a bomb-shaped fin-stabilized projectile. All three are made from inexpensive shelving material using various shop tools and techniques. They all work well in my new 2" bore cannon. The Foster slug seems to be the winner in terms of how much work it takes in comparison to how much fun it is to shoot. Since the projectiles often disappear it's not something you want to spend a lot of time making.
Tags: 3 Types of Projectiles for Spud Guns, Potato, Cannon, Coaxial, Combustion, Electronic, Igniter