The CX(TM) (Copper alloy eXpanding) bullet from Hornady represents the most advanced monolithic hunting bullet on the market. Its optimized design offers extended range performance, greater accuracy, high weight retention, and deep penetration. PRODUCT FEATURES MONOLITHIC COPPER ALLOY BULLET One-piece copper alloy won't separate and delivers devastating terminal performance, deep penetration, and 95% weight retention. HEAT SHIELDA(R) TIP The Heat ShieldA(R) Tip is made of a heat resistant polymer that resists aerodynamic heating and provides a consistently high BC for the bullet's entire flight path. T Mfg: Hornady