Winchester Large Rifle Magnum Primers are constantly and rigorously tested for consistency and sensitivity at temperatures and conditions far beyond...
These non-corrosive, all weather primers deliver fast, dependable ignition under any shooting condition. Primers are constantly and rigorously tested for
Winchester’s #11 Magnum percussion cap has hotter fire for faster, more complete burn on powder and Pyrodex pellets. #11 Magnum produces a 24 percent hotter flame, and is perfect for replica black powders and is non-corrosive and non-mercuric.