Increase your rifle's performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. Superformance uses progressive propellants that take your favorite V-MAX, NTX, SST, GMX, and InterLock, bullets to levels of performance that are simply unattainable with conventional ammunition. Product Features Progressive Hornady Powders : Superformance Propellants are the heart of Superformance 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 : FAST : 100 to 200 fps faster than conventional ammunition. ACCURATE : Uncompromising accuracy without increased felt recoil. CONSISTENT : Unfailing performance across a broad range of temperatures. 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. Product Specifications Caliber: 6mm Creedmoor Bullet Weight: 90 Grain GMX Bullet Type: Superformance Muzzle Velocity: 3325 fps Muzzle Energy: 2209 ft/lbs Quantity: 20 Rounds per box