This is 6.5 Creedmoor Hornady Superformance 120gr. GMX Ammo. Superformance provides increased ballistic performance, and is safe to use in all firearms, including semi-autos, lever gun and pump actions. Increases in rifle performance, no increases in barrel wear and felt recoil, along with superior temperature stability are all realized with Superformance ammunition. Muzzle velocity of 3050fps. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases. This ammo comes packed in 20rd. boxes.