Some 10mm ammo that’s intended for range and target practice is loaded light, and 180-grain FMJ loads with velocities between 1,000 and 1,100 feet per second match the ballistics of the .40 S&W. In fact, the .40 S&W was derived from these reduced recoil loads and simply uses a shorter case. Pretty much any of the premium defensive 10mm ammo you’ll see on the shelf is “full power.”