Carbon Fiber Shotgun Slugs - We Mach Them!

Gresham Custom Concepts wanted to demonstrate the extreme durability of their manufacturing process by sending some samples for us to "mach". I was skeptical and did not expect these to be as strong as they were. We started off with very light powder loads and worked our way up to reach supersonic velocities. Patreon: https://www.patreon.com/user?u=3751733