Product Features Proven Hornady Bullets -Superformance ammunition is loaded with Hornady CX, bullets for the ultimate in performance, no matter what the game. Progressive Hornady Powders - Superformance Propellants are the heart of SuperformanceA(R) ammunition and usher in a new era of performance. Case and Primer - Like all Hornady ammunition, our Superformance rounds use the highest quality cases and primers available. Consistent components translate to consistent shooting in the field. Performance: IT IS FAST: 100 to 200 fps faster than conventional ammunition. IT IS ACCURATE: Uncompromising accuracy without increased felt recoil. IT IS CONSISTENT: Unfailing performance across a broad range of temperatures. IT IS VERSATILE: This new breed of ammunition is available in 17 Hornet to 444 Marlin, and is safe for use in all firearm types, including semi?autos, lever guns and pump actions.