Sierra Bullets Sports Master Pistol Bullets .50 Caliber Jacketed Soft Point/JSP 400 grain 50 Bullets/Box. These bullets are perfectly engineered to offer consistent and reliable expansion over a wide range of velocities. Sectional Density: .229 Ballistic Coefficients and Velocity Ranges : .185 at1600 fps and above .198 between 1600 and 1450 fps .212 between 1450 and 1280 fps .227 between 1280 and 1150 fps .234 at1150 fps and above Specifications for Sierra Bullets Sports Master 400 gr. .50 Cal JSP Pistol Bullets 50 Count: Manufacturer: Sierra Bullets Gun Type: Handgun Bullet Type: Jacketed Soft Point (JSP) Bullet Weight: 400 grain Diameter: 0.5 in Sectional Density: 0.229 Projectile Caliber: .50 Caliber Bullet Quantity: 50 Bullet Country of Origin: USA Package Contents: Sierra Bullets Sports Master 400 gr. .50 Cal JSP Pistol Bullets 50 Count Sierra Bullets 5400: Sports Master Pistol Bullets .50 Caliber Jacketed Soft Point/JSP 400 grain 50 Bullets/Box