Superformance ammunition is loaded with proprietary propellants that increase the velocity ratings up to 200 feet per second compared to other popular brands. Because there is no increase in pressure, regardless of the caliber, there is no increase in felt recoil but there IS an increase in efficiency and high speed performance. From sub-zero arctic temperatures to almost unbearable desert heat, Superformance ammunition can withstand any hunting condition.
WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm.
Specifications:
• Cartridge: 257 Roberts
• Grain Weight: 117 Grains
• Quantity: 20 Round
• Muzzle Velocity: 2945 Feet Per Second
• Muzzle Energy: 2253 Foot Pounds
• Bullet Style: Polymer Tip
• Bullet Brand And Model: Hornady SST (Super Shock Tip)
• Lead Free: No
• Case Type: Brass
• Primer: Boxer
• Corrosive: No
• Reloadable: Yes
• G1 Ballistic Coefficient: 0.39
• Sectional Density: 0.253
• Velocity Rating: Supersonic
• Country of Origin: United States of America
All mail order sales of ammunition to the public require a NZ Police permit.