This is .45 Long Colt DRS 250gr. Lead Round Nose Flat Point Ammo. This ammo is manufactured by DRS. This is excellent quality ammo that is brass cased, boxer primed, non-corrosive and reloadable. DRS is a licensed and insured ammo manufacturer. This is new ammo loaded in new brass. Revolvers only. Velocity is about 800fps out of a 6" barrel.