The Sellier & Bellot 8x64 S Brenneke Unprimed Reloading Brass Cases provide reloaders with factory-new virgin components for handloading the classic 8x64mm S cartridge. Sourced directly from Sellier & Bellot in the Czech Republic, this virgin cartridge brass features uniform wall thickness and standard dimensions engineered for consistent chambering and extended reloading cycles. Because factory-loaded 8x64mm S ammunition is rarely encountered on commercial shelves, these virgin cases allow shooters to assemble tailored, high-pressure hunting loads for classic European sporting arms and custom Mauser actions.

Key Features

• Virgin Cartridge Brass: Drawn to standard C.I.P. specifications to ensure uniform neck concentricity and internal volume across every firing cycle.
• Standard Boxer Primer Pockets: Configured for Large Rifle Standard Boxer primers, facilitating straightforward de-priming and repriming with standard commercial reloading dies.
• S-Bore Compatibility: Sized specifically for standard .323-inch (8.22 mm) groove diameter projectiles, matching standard S-bore barrels.
• Precise Case Dimensions: Features a 64.00 mm maximum case length, an 11.95 mm rim diameter, and an 11.93 mm base diameter for reliable extraction and feeding.

Specifications

• Manufacturer: Sellier & Bellot
• Manufacturer Part Number: V337662
• Calibre: 8x64mm S Brenneke
• Quantity: 20 pieces per pack
• Primer Pocket Type: Large Rifle Boxer
• Maximum Case Length: 64.00 mm
• Rim Diameter: 11.95 mm
• Base Diameter: 11.93 mm
• Bullet Diameter Compatibility: .323 in (8.20 mm / 8.22 mm)
• Internal Water Capacity: Approximately 68.5 to 70 grains of H2O
• Maximum Average Pressure (C.I.P. Pmax): 4,050 bar (58,740 psi)

Who is the S&B Sellier & Bellot 8x64s Brenneke Unprimed Brass Cases 20 Pack for?

• Classic European rifle handloaders — requires factory-spec 8x64mm S Brenneke brass measuring 64.00 mm in maximum case length to assemble safe handloads for specialised Mauser-based sporting rifles where factory-loaded ammunition is unavailable.
• Medium-to-large game hunters — uses these unprimed rifle brass cases accommodating standard Large Rifle primers and .323-inch diameter projectiles to tailor heavy-bullet loads for hunting fallow, sambar, red deer, and wild boar.

Less suitable for: Owners of vintage European rifles chambered for the smaller .318-inch I-bore, or standard rifles chambered in 8x57 IS or .30-06 Springfield, where attempting to chamber or fire this 64.00 mm case with modern 4,050 bar working pressures presents severe chamber incompatibility; shooters needing high-volume ammunition for standard rifles should select standard factory-loaded .30-06 Springfield or 8x57 IS cartridge brass instead.