Fiocchi 357B Defense Dynamics 357 Mag 158gr JHP Ammo 50rd Box

The Fiocchi 357B Defense Dynamics delivers controlled expansion and deep penetration for serious personal protection applications. This premium 357 Magnum load features a 158-grain jacketed hollow point bullet engineered to perform consistently across various barrel lengths and conditions.

What Makes This Different

Fiocchi's Defense Dynamics line utilizes advanced bullet construction with a precisely engineered hollow point cavity that promotes reliable expansion while maintaining structural integrity. The jacketed hollow point design provides superior weight retention compared to lead hollow points, delivering approximately 95% weight retention through standard ballistic gelatin tests. This ammunition achieves muzzle velocities of 1,250 feet per second from a 4-inch barrel, generating 548 foot-pounds of energy.

Key Features

• 158-grain jacketed hollow point bullet for optimal expansion and penetration
• Nickel-plated brass cases resist corrosion and ensure smooth feeding
• Non-corrosive Boxer primers provide consistent ignition
• Muzzle velocity of 1,250 fps from 4-inch barrel
• Muzzle energy of 548 ft-lbs for effective stopping power
• 50 rounds per box, 20 boxes per case (1,000 total rounds)
• Compatible with all 357 Magnum and 357 Maximum firearms

This load performs effectively in both short-barrel revolvers and longer carbine platforms. Law enforcement agencies specify similar 158-grain loads for duty use due to their proven terminal ballistics and barrier penetration capabilities. The ammunition maintains accuracy within 2-inch groups at 25 yards from quality revolvers and demonstrates consistent chronograph readings with minimal velocity spread.

Technical Specs

• Caliber: 357 Magnum
• Bullet Weight: 158 grains
• Bullet Type: Jacketed Hollow Point (JHP)
• Muzzle Velocity: 1,250 fps (4-inch barrel)
• Muzzle Energy: 548 ft-lbs
• Case Material: Nickel-plated brass
• Primer: Non-corrosive Boxer
• Quantity: 50 rounds per box, 20 boxes per case
• Manufacturer: Fiocchi Munizioni (Italy)

Fiocchi's century of ammunition manufacturing expertise ensures consistent quality control and reliable performance. This case quantity provides substantial value for training and duty use while maintaining the premium components expected from the Defense Dynamics line.