The Winchester WMGLP Large Pistol Primers deliver consistent ignition performance for centerfire handgun cartridges, providing reloaders with reliable components for precision ammunition assembly. These non-corrosive primers feature Winchester's proven manufacturing standards developed over decades of ammunition production. Each case contains 5,000 primers total, packaged in convenient 1,000-count boxes for efficient inventory management.
What Makes This Different
Winchester large pistol primers utilize a specialized cup design and priming compound formulation that ensures uniform flame spread and consistent pressure curves. The brass cups undergo precise dimensional control during manufacturing, resulting in primers that seat properly in standard large pistol primer pockets. Winchester's quality control process includes sensitivity testing and pressure verification to maintain lot-to-lot consistency that competitive shooters and precision reloaders demand.
Key Features
- Non-corrosive priming compound prevents barrel and case corrosion
- Standard large pistol size fits .45 ACP, .40 S&W, 10mm Auto, and similar cartridges
- Consistent cup thickness of 0.025 inches for reliable primer pocket fit
- Temperature-stable compound performs from -40°F to 140°F
- 5,000 total primers packaged in five 1,000-count boxes
- Anvil design optimized for uniform ignition across powder charge
- Manufactured to SAAMI specifications for dimensional accuracy
These primers demonstrate reliable ignition with both fast-burning powders like Bullseye and slower propellants such as Blue Dot or Unique. Competition shooters appreciate the consistent velocity spreads that contribute to tighter groups at extended ranges. Law enforcement agencies specify Winchester primers for duty ammunition due to their proven reliability in temperature extremes and extended storage conditions. The primers function effectively with cast bullets, plated projectiles, and jacketed hollow points across the full spectrum of large pistol cartridges.
Technical Specs
- Primer Type: Large Pistol Centerfire
- Cup Material: Brass with nickel-plated finish
- Compound: Non-corrosive, lead-free formulation
- Dimensions: 0.210-inch diameter, standard height
- Sensitivity: 4-8 pounds firing pin strike
- Package: 5 boxes of 1,000 primers each
- Storage Life: 10+ years in controlled conditions
- Country of Origin: United States
Winchester WMGLP primers represent a proven choice for reloaders who prioritize consistency and reliability in their ammunition components. The bulk packaging reduces per-unit costs while ensuring adequate supply for high-volume shooting applications. Professional reloaders and serious enthusiasts recognize Winchester's commitment to manufacturing primers that meet the exacting standards required for precision handgun ammunition.