For the shotgun user, we all like to try out different types of slugs, maybe you've come across the "needle". The needle slug is a 3D printed Alumide shotgun projectile. Alumide is a mixture of nylon and aluminum powder. It makes a pretty strong structure, the load was only 4 grams so its a light load. This was based on a "pen shank" created by Michael Yeh. Greg from TAOFLEDERMAUS Youtuber gets a chance to shoot this needle at a clump of clay and jelly down range. Check out the results below. You can see the needle footage here.