Fiocchi Range Dynamics .357 Magnum 158 Grain CMJFP Brass Pistol Ammo 50 Rounds. High-volume shooters appreciate this and they strive in their craft by never compromising their quality standards with options that will suit your needs. Specifications for Fiocchi Range Dynamics .357 Magnum 158 Grain CMJFP Brass Pistol Ammunition: Manufacturer: Fiocchi Caliber: .357 Magnum Number of Rounds: 50 Bullet Type: Copper Metal Jacket Flat Point Bullet Weight: 158 grain Cartridge Case Material: Brass Muzzle Velocity: 1250 ft/s Application: Target Primer Style: Centerfire Package Contents: Fiocchi Range Dynamics .357 Magnum 158 Grain CMJFP Brass Pistol Ammunition Fiocchi 357GCMJ: Range Dynamics .357 Magnum 158 Grain CMJFP Brass Pistol Ammo 50 Rounds