Federal Syntech .40 S&W 205 Grain Centerfire Ammo offers a cleaner shooting experience. TSJ (Total Synthetic Jacket) is the exclusive polymer coating in all Syntech rounds that prevents metal-on-metal contact, which protects your bore while eliminating lead and copper fouling. The flat-nosed bullet is designed for increased knock-down capabilities on steel targets for competition. Add clean-burning propellants and the Catalyst lead-free primer, and you’ll earn increased longevity in your firearm when you use Syntech ammunition. .40 S&W 205 grain Polymer-encapsulated Syntech bullets Prevents metal-on-metal contact Lead-free primer Clean-burning powders Reduced heat and friction Less felt recoil Reduced splash back on targets with no copper jacket