The Supreme line of ammo is Winchester s best; the most technologically-advanced centerfire ammunition money can buy. The Platinum Tip Hollow Point features a patented, notched reverse taper bullet jacket. Plated Heavy Wall Jacket and 2-part Hollow Point Cavity for Uniform Bullet Expansion. With massive energy depo, the 44 Remington magnum Platinum-tipped HP is just right for bringing down whitetail and mule deer, while the 454 Casall will help bag those thick-skinned trophies like elk and caribou.