The Winchester WSC300WSMU delivers consistent performance for precision reloaders working with 300 Winchester Short Magnum cartridges. This unprimed brass provides the foundation for match-grade ammunition with uniform case dimensions and reliable ignition characteristics.
What Makes This Different
Winchester brass undergoes multi-stage quality control processes that ensure consistent wall thickness and internal volume across each lot. The brass alloy composition provides optimal expansion and contraction cycles, extending case life beyond standard alternatives. Each case features precise flash hole drilling and uniform primer pocket dimensions that contribute to consistent ignition timing.Key Features
- Unprimed 300 Winchester Short Magnum brass cases ready for custom loading
- Consistent wall thickness within 0.001 inches for uniform powder capacity
- Premium brass alloy composition rated for multiple reloading cycles
- Precision-drilled flash holes measuring 0.080 inches for reliable ignition
- Uniform primer pocket depth and diameter specifications
- 50-count packaging with protective storage bag
- Compatible with standard reloading equipment and dies
Technical Specs
- Caliber: 300 Winchester Short Magnum (300 WSM)
- Case length: 2.100 inches
- Base diameter: 0.555 inches
- Neck diameter: 0.339 inches (unloaded)
- Material: Premium brass alloy
- Primer pocket: Large rifle standard
- Quantity: 50 cases per bag
- Manufacturer: Winchester Ammunition
- UPC: 020892633100
