SinterFire Next Generation 40 S&W 125gr Lead Free Ball Handgun Ammo - 50 Rounds - SinterFire ammunition is designed to increase safety and minimize the environmental concerns from lead. The ammunition is loaded with SinterFire projectiles according to the specific product line of choice. The Next Generation line features a lead free monolithic copper projectile and is ideal for training. Lead free monolithic copper projectile (non-frangible) Loaded with a standard primer