The Sellier & Bellot .357 Magnum FMJ 158 Grain ammunition provides reliable, non-expanding performance designed for target shooting and range training. Engineered with a lead core enclosed in a CuZn 10 brass jacket, this round prevents barrel leading during extended firing sessions. Tested from a standard 150 mm barrel, it produces a muzzle velocity of 385 m/s and 760 J of muzzle energy, maintaining 347 m/s and 616 J at 50 metres downrange. Each factory cartridge is loaded into a drawn, reloadable Boxer-primed brass case with non-corrosive clean-burning propellants, offering consistent cycling in both revolvers and lever-action carbines chambered in .357 Magnum.

Key Features

• Full Metal Jacket Projectile: Combines a lead core with a CuZn 10 alloy metallic jacket to eliminate bore leading during high-volume shooting.
• Consistent Ballistics: Generates 385 m/s muzzle velocity and 760 J muzzle energy, retaining 522 J at 100 metres.
• Reloadable Brass Cases: Factory-drawn Boxer-primed brass cases allow handloaders to reload spent casings.
• Non-Corrosive Priming: Loaded with clean-burning propellants to reduce fouling and protect firearm actions and barrels.
• Standard Dimensions: Sized to a Cartridge Overall Length of 40.39 mm for smooth chambering and reliable feeding from tubular magazines or cylinder chambers.

Product Specifications

• Calibre: .357 Magnum
• Bullet Type: Full Metal Jacket (FMJ)
• Bullet Weight: 158 grains (10.25 g)
• Muzzle Velocity: 385 m/s (~1,263 fps)
• Muzzle Energy: 760 J (~560 ft-lbs)
• Velocity at 50 m: 347 m/s
• Energy at 50 m: 616 J
• Velocity at 100 m: 319 m/s
• Energy at 100 m: 522 J
• Cartridge Overall Length (COL): 40.39 mm
• Single Round Weight: 15.7 g
• Box Weight (50 rounds): 0.84 kg
• Case Type: Boxer-primed reloadable brass

Who is the S&B Sellier & Bellot 357 Mag 158 Grain Fmj Ammo 50 Rd for?

• Indoor and outdoor target shooters — relies on standard-pressure non-corrosive primers and a 158-grain full metal jacket to prevent barrel leading across extended practice sessions with .357 Magnum handguns.
• Action pistol and metallic silhouette competitors — delivers 760 J of muzzle energy at 385 m/s, providing the consistent downrange momentum required by .357 Magnum match disciplines out to 50 metres.
• Lever-action carbine owners — chambers smoothly from tubular magazines due to its precise 40.39 mm Cartridge Overall Length, providing uniform feeding for high-volume carbine training.

Less suitable for: Target engagements beyond a 100 m distance threshold where trajectory drop and energy loss make dedicated centerfire rifle calibres more effective, or ethical game harvesting where expanding soft point or hollow point projectiles are required instead of non-expanding FMJ ammunition.