Fiocchi Defense Dynamics 357 Magnum 148gr JHP Handgun Ammo - 50 Rounds - Serious defense practitioners understand that personal safety requires 24/7 vigilance in all environments. From deep concealment micro pistols and snub-nose revolvers for discrete public carry to defensive rifles and shotguns in the home or on the road. Filling all those magazines and cylinders with reliable-performing defensive ammunition can be expensive, especially when dealing with multiple calibers and chamber gauges.