This is Winchester Super X 45 Long Colt 255gr. Lead Round Nose Ammo.This ammo is new-production, non-corrosive and has a 100% reloadable brass case. Super-X is very accurate and is excellent target ammo. Winchester Super-X has a lubricated bullet for sure functioning and reliability. Comes packed in 20rd. boxes. It travels at 860 FPS at the muzzle of a 5.5" barrel.