For those backcountry encounters when a reliable round can be a lifesaver, Hornady introduces Backcountry Defense ammunition. Featuring the DGH (Dangerous Game Handgun) bullet, providing maximum penetration and no deflection, Backcountry Defense(TM) delivers peace of mind from your favorite backcountry sidearm. Specifications and Features: Cartridge: 460 Smith & Wesson Magnum Bullet: 300 gr DGH (Dangerous Game Handgun) Product Line: Backcountry Defense Muzzle Velocity: 1820 fps Sectional Density: .210 Ballistic Coefficient: n/a. Minimum Recommended Twist Rate: n/a. Application: Dangerous Game Box Count: 20 Rounds