This .416 diameter 370 grain Safari Raptor non-conventional (NonCon) brass solid hunting bullet is designed for bolt action rifles as well as double rifles. Design incorporates 3 + 1 band configuration for reduced barrel strain. It has the 67% Meplat BBW#13 which has been proven to provide the deepest penetration of any nose profile to date. Instead of mushrooming, six petals shear off starting at 3 of penetration and gradually move in a star pattern away from the main wound channel while the base continues on for even deeper penetration. Technical Info: Caliber: .416 Weight: 370 grains Required Twist Rate: STANDARD G1 Ballistic Coefficient: .180 G7 Ballistic Coefficient: OAL: 1.522 Projection Length: .750 Min Impact Velocity Required for Expansion: 1500fps