Federal Premium Practice & Defend 40 S&W 180 Grain HST JHP/Syntech TSJ Centerfire Pistol Ammo 100 Rounds. The Syntech name has garnered a solid reputation over the years but these 40 S&W 180 grain options are something new. The 180 grain HST personal defense load is ballistically paired with Syntech loads of identical velocities trajectory and point of impact. The Syntech brand is focused on producing the industry's highest quality and most consistent performance ammunition. The Syntech TSJ (total Synthetic Jacket) bullets significantly reduce metal fouling barrel heat and friction and splash-back against hard targets making these rounds ideal for realistic training. The HST personal defense load has been proven by law enforcement to be the most reliable self-defense loads. Specifications for Federal Premium Practice & Defend 40 S&W 180 Grain HST JHP/Syntech TSJ Centerfire Pistol Ammunition: Manufacturer: Federal Caliber: .40 S&W Number of Rounds: 100 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 180 grain Cartridge Case Material: Brass Muzzle Velocity: 1010 ft/s Muzzle Energy: 408 ft-lbs Application: Self-Defense Package Type: Box Primer Style: Centerfire Lead Free: No Gun Type: Handgun Features of Federal Premium Practice & Defend 40 S&W 180 Grain HST JHP/Syntech TSJ Centerfire Pistol Ammunition Ballistically paired Syntech Training Match and HST loads Practice loads' Total Synthetic Jacket prevents metal fouling reduces barrel heat and friction and minimizes splash-back against hard targets HST expands reliably through a variety of barriers and penetrates to ideal depths for self-defense situations Flawless function and reliability in semi-automatic pistols Package Contents: Federal Premium Practice & Defend 40 S&W 180 Grain HST JHP/Syntech TSJ Centerfire Pistol Ammunition Federal P40HST1TM100: Premium Practice & Defend 40 S&W 180 Grain HST JHP/Syntech TSJ Centerfire Pistol Ammo 100 Rounds