The Hornady Dangerous Game Solid and Expanding bullets feature copper jackets and a high antimony lead core. The Solids are a flat nose, non-expanding, homogenous-style bullet designed for deep penetration while the eXpanding bullets have a flat nose and are designed for controlled expansion. Both bullets are fully capable of taking down the world's toughest and most dangerous animals. These Solid bullets are made of copper clad steel. This is not loaded ammunition.