Winchester WMGLR Large Rifle Primers deliver consistent ignition performance for centerfire rifle cartridges, providing reloaders with reliable components for precision ammunition assembly. This bulk packaging of 5,000 primers (5 cases of 1,000 each) offers serious reloaders substantial cost savings while ensuring adequate supply for extended shooting seasons.
What Makes This Different
Winchester's large rifle primers feature a specially formulated compound that produces uniform flame spread and pressure curves across temperature ranges from -20°F to 125°F. The anvil design creates consistent primer pocket fit in standard large rifle cases, while the cup thickness withstands pressures up to 65,000 PSI. These primers ignite reliably with both ball and stick powders, making them suitable for cartridges from .243 Winchester through .300 Winchester Magnum.
Key Features
- Consistent ignition across temperature extremes (-20°F to 125°F)
- Standard large rifle primer dimensions (.210" diameter)
- Pressure rating up to 65,000 PSI for magnum cartridges
- Compatible with all major large rifle cartridge cases
- Bulk packaging of 5,000 primers reduces per-unit cost
- Non-corrosive, non-mercuric compound formulation
- Uniform cup thickness for consistent seating depth
These primers perform consistently in competitive shooting environments where ammunition uniformity directly impacts accuracy. The reliable ignition characteristics support precision rifle applications including long-range target shooting, hunting cartridges, and match ammunition development. Winchester's quality control processes ensure lot-to-lot consistency, critical for load development work where primer variations can affect velocity and accuracy.
Technical Specs
- Type: Large Rifle Centerfire Primers
- Diameter: .210 inches (5.33mm)
- Height: .128 inches (3.25mm)
- Packaging: 1,000 primers per box, 5 boxes per case
- Total quantity: 5,000 primers
- Pressure rating: Up to 65,000 PSI
- Shelf life: 10+ years when stored properly
- Manufacturing: Winchester, USA
This bulk primer package provides reloaders with sufficient components for developing consistent loads across multiple rifle cartridges. The cost-effective packaging structure makes it practical for high-volume shooters who require reliable ignition performance without premium pricing.