Winchester WSC7MMRU 7mm Rem Mag Unprimed Brass Cases - 50 Count

Winchester WSC7MMRU unprimed brass cases deliver the foundation for precision 7mm Remington Magnum handloads. These factory-quality cases provide consistent wall thickness and proper headspace dimensions for reliable feeding and extraction across bolt-action rifles.

What Makes This Different

Winchester brass cases undergo multi-stage drawing and annealing processes that create uniform case geometry and optimal neck tension. The brass alloy composition maintains structural integrity through multiple reloading cycles while resisting case head separation. Factory tolerances ensure consistent powder capacity and bullet seating depth compared to mixed headstamp brass.

Key Features

• Factory-drawn 7mm Remington Magnum brass with consistent wall thickness
• Annealed case mouths provide proper neck tension for bullet seating
• Flash hole deburred and primer pockets uniformed from factory
• Headspace dimensions meet SAAMI specifications for reliable chambering
• 50-count packaging reduces waste for standard reloading batch sizes
• Winchester headstamp maintains case identification through multiple firings
• Brass composition rated for 8-12 reloading cycles with proper case preparation

These cases chamber smoothly in popular 7mm Rem Mag rifles including Remington 700, Winchester Model 70, and Savage 110 platforms. The consistent case capacity supports load development for long-range hunting applications where velocity uniformity directly impacts downrange accuracy. Proper case preparation and annealing extend service life beyond budget brass alternatives.

Technical Specs

• Caliber: 7mm Remington Magnum
• Case Type: Unprimed rifle brass
• Quantity: 50 cases per bag
• Case Length: 2.500 inches
• Case Head Diameter: 0.532 inches
• Neck Diameter: 0.315 inches (unfired)
• Primer Pocket: Large rifle standard
• Material: Brass alloy construction
• Manufacturer: Winchester Ammunition
• Country of Origin: United States

Winchester's quality control standards ensure dimensional consistency that translates to predictable ballistic performance. The 50-count packaging matches common reloading quantities while the factory preparation reduces initial case processing time.