The Norma .357 Mag 158gr FN FMJ ammunition is engineered for consistent range training and target shooting in .357 Magnum revolvers and lever-action rifles. Featuring a 158-grain (10.2-gram) Flat Nose Full Metal Jacket bullet, this load provides reliable cycling and punches clean, defined holes in paper targets. It produces a factory muzzle velocity of 395 m/s (1,296 ft/s) and a muzzle energy of 799 J (589 ft-lb) from a standard 6-inch test barrel. Built with non-corrosive Boxer primers and reloadable brass casings, it is supplied in 50-round boxes for high-volume shooting sessions.

Key Features

• Flat Nose FMJ Projectile: The 158gr Full Metal Jacket Flat Nose bullet cuts sharp holes in target paper and feeds reliably in both revolver cylinders and tubular rifle magazines.
• Factory Ballistics: Achieves a muzzle velocity of 395 m/s (1,296 ft/s) and a muzzle energy of 799 J (589 ft-lb) with a ballistic coefficient of 0.179 (G1).
• Quality Components: Loaded with non-corrosive Boxer primers and reloadable brass cases to support high-volume training and reloading workflows.
• Short-to-Mid-Range Stability: Retains 355 m/s velocity and 645 J of energy at 50 metres, maintaining predictable trajectories out to 150 metres.

Specifications

• Calibre: .357 Magnum
• Bullet Type: Full Metal Jacket Flat Nose (FMJ / FN)
• Bullet Weight: 158 grains (10.2 grams)
• Muzzle Velocity (V₀): 395 m/s (1,296 ft/s)
• Muzzle Energy (E₀): 799 J (589 ft-lb)
• Ballistic Coefficient: 0.179 (G1)
• Case Type: Boxer-primed, reloadable brass
• Packaging: 50 cartridges per box

Who is the Norma .357 Magnum 158gr FN FMJ for?

• Practical Pistol Competitors — Delivers consistent point-of-impact scoring on paper targets out to 50 metres, where this Norma .357 Magnum ammunition maintains 355 m/s velocity and 645 J of kinetic energy.
• High-Volume Range Shooters — Provides reliable feeding in .357 Magnum revolvers and lever-action rifles, packaging 50 rounds per box featuring a 158-grain (10.2 g) non-expanding projectile running at 395 m/s.

Less suitable for: Medium-to-large game hunting or defensive use where non-expanding FMJ bullets lack terminal performance, which require expanding jacketed hollow-point (JHP) or jacketed soft-point (JSP) ammunition; firearms chambered exclusively for .38 Special; or precision rifle shooting beyond 150 metres.