Ammunition Specifications Caliber: 40 S&W Bullet Type: Full Metal Jacket Bullet Weight: 165 GR Muzzle Energy: 404 ft lbs Muzzle Velocity: 1050 fps Quantity: 50 Rounds Per Box Blazer Brass 40 S&W is loaded with a protected-base FMJ bullet. CCI primers insure reliable ignition, and are loaded with clean-burning American made propellants. Blazer Brass brings shooters the reliability and quality of American-made ammunition built to U.S. industry standards, and it s backed by the stringent ISO certified quality systems at CCI. Blazer Brass is loaded in reloadable brass cases for added value. Standard Boxer-type primers and primer pockets mean you can reload Blazer Brass cases just like any other case.