This is 450-400 Hornady Nitro Express 3in. 400gr. DGX Ammo. Tough copper clad steel jacket and high antimony lead alloy core for deep penetration. Controlled expansion for maximum energy transfer and devastating terminal performance every time. Smooth, flat meplat aids in expansion and straight penetration. Hornady Dangerous Game Series ammunition is designed specifically for large game and safari hunting. Hornady is a custom-grade ammunition from the factory. Built to the tightest tolerances for peak performance rivaling and sometimes surpassing handloads in many guns. This ammunition is new production, non-corrosive, boxer primed, reloadable brass cases. This ammo comes packed in 20rd. boxes.