Hornady Superformance 7mm-08 Rem 139gr CX Copper Alloy 20rd Box

The Hornady Superformance 7mm-08 Remington ammunition delivers exceptional velocity increases of 100-200 fps over conventional loads without increased chamber pressures. This 139-grain copper alloy expanding (CX) bullet configuration provides hunters with lead-free performance that meets hunting regulations across all North American territories.

What Makes This Different

Superformance propellant technology achieves higher velocities through progressive burning characteristics that maintain safe pressure levels throughout the barrel length. The monolithic copper alloy CX bullet retains 95% of its weight upon impact while expanding to nearly twice its original diameter. Standard lead-core bullets typically retain only 60-80% of their weight and expand less consistently across varying impact velocities.

Key Features

• 139-grain monolithic copper alloy CX bullet with controlled expansion
• Superformance propellant increases velocity 100-200 fps over standard loads
• Lead-free construction complies with all hunting regulations
• Boat-tail design maintains ballistic coefficient of .486
• Nickel-plated cases resist corrosion and ensure reliable feeding
• Boxer-primed cases suitable for reloading applications
• Factory-loaded to SAAMI specifications for consistent performance

Field performance testing demonstrates flat trajectory characteristics with minimal wind drift at extended ranges. The copper alloy construction penetrates heavy bone while creating sufficient wound channels for quick, ethical harvests on medium game. Temperature stability remains consistent from -40°F to 140°F, making this ammunition suitable for diverse hunting conditions from arctic caribou hunts to desert mule deer pursuits.

Technical Specs

• Caliber: 7mm-08 Remington
• Bullet Weight: 139 grains
• Bullet Type: Copper Alloy eXpanding (CX)
• Muzzle Velocity: 2,950 fps (approximate)
• Muzzle Energy: 2,686 ft-lbs
• Ballistic Coefficient: .486
• Case Material: Nickel-plated brass
• Primer: Boxer-type, non-corrosive
• Package: 20 rounds per box, 10 boxes per case
• Manufactured: Grand Island, Nebraska, USA

Hornady's quality control standards ensure each cartridge meets strict velocity and accuracy tolerances. The combination of Superformance propellant and CX bullet technology provides hunters with a premium ammunition option that delivers both performance advantages and regulatory compliance for lead-free hunting zones.