Winchester® Rifle Primers deliver fast, dependable ignition under any shooting condition. Winchester tests their primers rigorously for consistency and sensitivity at temperatures and conditions far beyond the range of normal usage. Winchester magnum rifle primers maintain stability in extremes of temperature and humidity in both loaded ammunition or stored in boxes on the shelf.

• Deliver dependable ignition
• Non-corrosive, non-mercuric
• Consistent in size and quality
• Maintain stability in extremes of temperature and humidity