This is 357 Mag PMC Starfire 150gr. Hollow Point Ammo. PMC’s Starfire line is a very impressive self-defense round at an affordable price. This patented rib-and-flute hollow point cavity design is a good choice for carry weapons. Upon impact, the pre-notched jacket mouth begins to peel back, separating into five uniform copper petals creating a large wound channel. This ammo is new production, non-corrosive and 100% reloadable brass cases.