The Norma EVOSTRIKE .300 Winchester Magnum 139gr ammunition delivers flat-shooting performance and rapid energy transfer for small to medium game hunting. Featuring a lead-free, dual-core design, this load uses a polymer-tipped fragmenting boat-tail projectile that launches at a muzzle velocity of 1,025 m/s (3,363 fps) and generates 4,728 Joules of muzzle energy from a 660 mm test barrel. The front core is engineered with food-grade tin and radial perforations for explosive fragmentation on impact, while the solid rear tin core continues penetration to ensure an exit wound and a reliable blood trail.

Key Features

• Dual-Core Lead-Free Bullet: Combines a radially perforated front tin core for immediate internal fragmentation with a solid rear tin core for deep penetration and exit wounding.
• Polymer Tip and Boat-Tail Profile: Enhances aerodynamics with a 0.318 G1 ballistic coefficient, ensuring flat trajectories and retaining 723 m/s of velocity and 2,352 Joules of energy at 300 metres.
• Nickel-Plated Jacket: Minimises copper fouling in the bore to maintain consistent accuracy and extend rifle barrel service life.
• Optimised Ballistic Zero: Configured for a Most Recommended Distance (MRD) zero of 203 metres for extended field shooting.

Technical Specifications

• Calibre: .300 Winchester Magnum
• Bullet Weight: 139 grains (9.0 grams)
• Bullet Type: Lead-free tipped fragmenting boat-tail (Tipped Fragmenting BT-LF)
• Ballistic Coefficient: 0.318 (G1)
• Muzzle Velocity: 1,025 m/s (3,363 fps)
• Velocity at 100 m / 200 m / 300 m: 917 m/s / 816 m/s / 723 m/s
• Muzzle Energy: 4,728 Joules (3,490 ft-lb)
• Energy at 100 m / 200 m / 300 m: 3,784 J / 2,996 J / 2,352 J
• Box Quantity: 20 rounds

Who is the Norma EVOSTRIKE .300 Win Mag 139gr for?

• Small to Medium Game Hunters — requires a high-velocity .300 Win Mag lead-free ammunition option travelling at 1,025 m/s that delivers instant fragmentation and immediate energy dump on fallow deer, pigs, goats, and wild dogs.
• Non-Toxic Zone Shooters — requires 100% lead-free, non-toxic .300 Win Mag ammunition featuring a 139 grains dual-tin-core projectile with a 0.318 (G1) ballistic coefficient for long-range environmental compliance.

Less suitable for: Large or heavy game hunting (such as sambar deer, water buffalo, elk, or moose); the 139 grains fragmenting front core does not provide the weight retention required for heavy bone penetration, making controlled-expansion monolithic copper or heavy bonded lead-core rifle ammunition more appropriate.