This is .40 S&W Fiocchi 125gr. Sinterfire Leadless Frangible Ammo. Fiocchi's frangible bullets are made from a lead-free metal powder. Because of this, they fragment when striking a hard surface making them a ricochet-resistant round. They will not damage a firearm's bore. This ammunition is new production, non-corrosive, boxer primed, with reloadable brass cases. This ammo comes packed in 50rd. boxes.