Hornady's pistol ammo delivers both accurate and dependable knockdown power. Included in the features are select cases that are chosen to meet unusually high standards for reliable feeding, corrosion resistance, proper hardness, and the ability to withstand maximum chamber pressures along with primers that are chosen for their ability to quickly, completely, and reliably ignite the powder charge. Features:- Bullet Type: XTP- Muzzle Energy: 551 ft lbs- Muzzle Velocity: 1265 fpsSpecifications:- Caliber: 10 MM- Bullet Weight: 155 GR- Rounds/box: 20 Rounds Per Box, 10 Boxes Per Case