How far is a Shotgun Deadly? These are the not smart ideas we come up with related to shotguns. I've found myself focused on how deadly shotguns are because it is such a compelling weapon. Especially when we think about how far a projectile might need to travel, and given the low pressures and velocities from shotguns I really wanted to see when it would be deadly. Utilizing BirdShot, buckshot, and Slugs we'll be evaluating with intense science.