The Norma Whitetail .257 Weatherby Magnum 100gr Soft Point ammunition is engineered for flat-shooting medium-game hunting and open-country pest management. Loaded in premium reloadable brass cases with non-corrosive Boxer primers, this factory ammunition pairs a 100-grain (6.5 g) jacketed soft-point projectile with a high-velocity propellant charge. The round delivers a muzzle velocity of 3,510 fps (1,070 m/s) and a muzzle energy of 2,736 ft-lb (3,721 J) when fired from a 26-inch (660 mm) test barrel, maintaining 1,245 ft-lb (1,565 J) of kinetic energy out to 300 metres with an optimal zero distance of 205 metres.

• High-Velocity Trajectory: Produces a muzzle velocity of 3,510 fps (1,070 m/s) to minimise elevation adjustments across medium-to-long distances.
• Controlled Expansion: Traditional lead-core jacketed soft-point bullet expands reliably on medium game to deliver rapid energy transfer.
• Extended Downrange Energy: Retains 2,127 ft-lb (2,823 J) at 100 metres, 1,638 ft-lb (2,122 J) at 200 metres, and 1,245 ft-lb (1,565 J) at 300 metres.
• Reloadable Components: Built with premium-grade Norma brass cases and standard Boxer primers for extended reloading cycles.

Specifications

• Calibre: .257 Weatherby Magnum
• Bullet Weight: 100 grains (6.5 grams)
• Bullet Type: Jacketed Soft Point (SP)
• Ballistic Coefficient: 0.256 (G1)
• Muzzle Velocity ($V_0$): 3,510 fps (1,070 m/s)
• Muzzle Energy ($E_0$): 2,736 ft-lb (3,721 J)
• Velocity at 100 m / 200 m / 300 m: 3,095 fps / 2,716 fps / 2,368 fps
• Energy at 100 m / 200 m / 300 m: 2,127 ft-lb / 1,638 ft-lb / 1,245 ft-lb
• Recommended Zero Range (MRD): 205 m (220 yards)
• Case Type: Reloadable brass, Boxer primed
• Package Quantity: 20 rounds per box
• Firearm Compatibility: Rifles chambered in .257 Weatherby Magnum (Category B licence required in Australia)

Who is the Norma Whitetail .257 Weatherby Magnum 100gr Soft Point for?

• Open-country medium-game hunters — requires the flat trajectory and 2,736 ft-lb of muzzle energy generated by this centrefire rifle ammunition to humanely take fallow, chital, and red deer out to a 205 m recommended zero distance.
• Long-range pest control shooters — utilizes the 3,510 fps velocity and 100-grain soft-point projectile to minimize drop when culling goats, wild dogs, and pigs across open paddocks.

Less suitable for: Close-range shots under 50 m to 100 m on heavy bone or heavy large game such as scrub bulls and sambar deer where extreme impact velocities risk rapid fragmentation; these applications are better served by bonded-core or monolithic copper hunting ammunition. It is also less suitable beyond 300 m to 400 m in crosswinds due to the 0.256 G1 ballistic coefficient, where high-BC polymer-tipped match or hunting bullets provide superior wind deflection resistance.