Utilizes Sierra’s proven line of Jacketed Hollow Point (JHP) bullets. Sierra’s Power Jacket provides positive, uniform, and controlled expansion by means of specially placed skives in the jacket around the tip of the bullet. Shell Shock casings are 50% lighter than brass (but stronger and more elastic), reloadable, eject cool to the touch, and magnetic – so ejected rounds clean up easy indoors or out. Loaded to the same velocity and accuracy specifications as premium self-defense rounds. Mfg: Sierra Bullets