Hornady's light and heavy magnum ammunition is loaded with Hornady's best performing bullets the interlock, SST, or interbond which are all bullets of choice for hunters who need higher ballistics and controlled expansion. By using a special cooler burning powder and revolutionary loading techniques you can achieve added velocity without the heat and pressure that can shorten barrel life.Features:- Bullet Type: XTP- Muzzle Energy: 502 ft lbs- Muzzle Velocity: 1350 fpsSpecifications:- Caliber: 357 SIG- Bullet Weight: 124 GR- Rounds/box: 20 Rounds Per Box, 10 Boxes Per Case