This is 40 S&W Barnes 140gr. TAC-XPD Hollow Point Ammo. The Optimized Solution for Personal and Home Defense. Loaded with the venerable Barnes TAC-XP bullets, TAC-XPD ammunition is engineered and designed to deliver top performance when it is most critical: in life-threatening situations the TAC-XP’s all-copper construction and very large, deep hollow-point cavity expand, penetrate and perform more consistently than any personal defense product on the market. This ammo is brass cased with a nickel coating, boxer primed, and non-corrosive. It comes packed in 20rd. boxes. Muzzle Velocity: 1120 fps.