Defense Dynamics cartridges are built with the same quality cases, hulls, powders, and primers that experienced shooters have come to expect from Fiocchi ammunition while employing projectiles proven to deliver the kind of terminal performance you demand in a personal or home defense round.Specifications:Caliber: 44 Rem MagBullet Type: Semi-Jacketed Hollow Point (SJHP)Bullet Weight: 200 GRMuzzle Energy: 966 ft lbsMuzzle Velocity: 1475 fpsRounds Per Box: 50Boxes Per Case: 10Application: Personal DefenseCasing Material: Brass