Federal Power-Shok Rifled Slug provides a line of different slugs for your rifles in just about any gauge you may need. These slugs are ideal for your smoothbore. Please note that a slug that is rifled is different than having a barrel that is rifled. These are accurate rounds that deliver a solid expansion when they hit their target. In addition, the bullets are accurate as far out as 100 yards. You can combine with the TruBall system and see your groups tighten up even more.