This is .308 Win. Corbon 140gr. Multi Purpose Green Ammo. This innovative ammunition from Corbon is a perfect load for target shooting and for lead-free ranges. It uses a gilding metal jacket with a compressed copper core. MPG disintegrates on impact with steel targets and is non-ricocheting. This low-penetrating round can also be used as a self-defense round. Environmentally friendly, certified California Lead Free. This ammo is packed 20rds. per box.