This is a unique combat shotgun with 80 damage. It is in the possession of Smiling Jack at the Evergreen Mills Bazaar. To get it, you must either kill him, shoot it out of his grip and pick it up before he does, or break it in V.A.T.S. so he puts it into his inventory. If you use the third method, put your weapon away immediately or Jack will attack you. It is important to note that the Terrible Shotgun has much more spread than any other shotgun. It is to be used as a close-combat weapon only because it is wildly inaccurate. It can be repaired with regular combat shotguns, but degrades very quickly.