Winchester WSC300BLKU Unprimed Brass Cases 300 Blackout 100/Bag

The Winchester WSC300BLKU unprimed brass cases deliver consistent performance for precision 300 Blackout reloading applications. These premium brass cases provide reloaders with the foundation needed for accurate, reliable ammunition tailored to specific shooting requirements.

What Makes This Different

Winchester brass cases undergo rigorous quality control processes that ensure uniform wall thickness and precise dimensional tolerances. The brass composition maintains optimal hardness levels that resist case head separation while allowing multiple reloading cycles. These cases feature consistent primer pocket depth and flash hole diameter, delivering more uniform ignition compared to mixed headstamp brass.

Key Features

• Premium brass construction with uniform wall thickness for consistent performance
• Precise dimensional tolerances ensure reliable chambering and extraction
• Unprimed cases ready for custom primer selection and load development
• Compatible with standard 300 Blackout chamber specifications
• Consistent primer pocket depth and flash hole diameter
• Durable brass alloy supports multiple reloading cycles
• 100-count packaging for convenient bulk reloading projects

These brass cases perform reliably across various 300 Blackout applications, from subsonic loads for suppressed shooting to supersonic hunting rounds. The consistent case capacity supports accurate powder charges and predictable ballistics. Reloaders report excellent case life when properly sized and trimmed, with many cases surviving 8-10 reloading cycles under normal pressures.

Technical Specs

• Caliber: 300 AAC Blackout
• Case type: Unprimed rifle brass
• Quantity: 100 cases per bag
• Case length: 1.368 inches
• Material: Premium brass alloy
• Primer pocket: Large rifle primer compatible
• Headstamp: Winchester marking
• Country of origin: United States

Winchester brass cases represent proven quality backed by decades of ammunition manufacturing expertise. The consistent dimensions and reliable performance make these cases an efficient choice for serious reloaders developing precision 300 Blackout loads.