Hornady Superformance Ammunition uses progressive propellants that take your CX bullets to levels of performance that are simply unattainable with conventional ammunition. Increase your rifle's performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. This ammunition is new production, non-corrosive, in boxer-primed, reloadable nickel-plated, brass cases. The CX (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. One-piece copper alloy won't separate and delivers devastating terminal performance, deep penetration, and 95% weight retention. 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. The Heat ShieldA(R) tip ...