The Hornady LEVERevolution 357 Magnum ammunition features 140-grain Flex Tip eXpanding (FTX) bullets specifically designed for lever-action rifles delivering 1440 FPS muzzle velocity and 644 ft-lbs of energy.Hornady LEVERevolution 357 Magnum ammunition140-grain Flex Tip eXpanding (FTX) projectile1440 FPS muzzle velocity for flat trajectory644 ft-lbs muzzle energy for reliable performanceBrass casing for reliable feeding and extraction25 rounds per box 10 boxes per caseSafe for tubular magazine lever-action riflesEngineered specifically for lever-action rifles this revolutionary ammunition provides superior ballistic performance while maintaining safety in tubular magazine firearms making it ideal for hunting and target shooting applications.