Federal 40 S&W 180 Gr TSJ Syntech doesn’t waste your time with practice that isn’t realistic. This load offers the same velocity, trajectory and point of impact as Federals HST loads. The TSJ bullet in Syntech loads offers a polymer jacket to eliminate metal fouling and reduces the damaging barrel heat and friction. Along with the TSJ bullet, Syntech offers a Federal-exclusive Catalyst primer to provide hot and reliable ignition without lead or other heavy metals. This 40 S&W at AmmoFast is the perfect choice for indoor ranges.