300 Win Mag Hornady Outfitter 180gr CX 20rdsDesigned to perform in nasty conditions and extreme temperatures you can trust Hornady Outfitter . 300 Winchester Magnum 180 Grain CX Centerfire Rifle Ammo to hit the mark during your once in a lifetime hunt. Bullets, powder, and primers are loaded into nickel plated brass cases, and sealed at the primer pocket and case mouth for waterproof assurance. The nickel plating protects cases from corrosion, which occurs when cartridges are carried in leather