The Winchester WSC4570GU unprimed brass cases deliver consistent performance for 45-70 Government reloading projects. These cases feature Winchester's quality brass construction that maintains dimensional stability through multiple reloading cycles.
What Makes This Different
Winchester brass cases undergo precise manufacturing processes that ensure uniform wall thickness and proper headspace dimensions. The 45-70 Government cases maintain consistent internal capacity within +/- 0.5 grains, delivering more predictable ballistic performance compared to mixed headstamp brass. Each case receives quality control inspection before packaging to eliminate dimensional defects that could affect accuracy or safety.
Key Features
- Uniform wall thickness for consistent powder capacity and pressure
- Proper headspace dimensions machined to SAAMI specifications
- Quality brass alloy construction resists case head separation
- Flash hole diameter held to tight tolerances for ignition consistency
- Annealed case mouths allow proper bullet seating without splits
- 50-piece bag quantity suitable for precision load development
- Compatible with standard 45-70 Government chamber dimensions
These brass cases handle heavy bullet weights and magnum powder charges typical in 45-70 Government applications. The cases work effectively for both traditional cast bullet loads and modern jacketed bullet configurations. Multiple reloading cycles remain possible when proper sizing and annealing techniques are applied. Case life typically extends 8-12 reloads with moderate pressure loads.
Technical Specs
- Caliber: 45-70 Government
- Case length: 2.105 inches
- Rim diameter: 0.608 inches
- Base diameter: 0.505 inches
- Material: Quality brass alloy
- Primer pocket: Large rifle
- Package quantity: 50 pieces
- Condition: Unprimed, ready for loading
- Manufacturer: Winchester
Winchester WSC4570GU cases provide the foundation for accurate 45-70 Government handloads. The consistent dimensions and quality construction justify the investment for serious reloaders who demand reliable performance from their ammunition components.