Enhance your personal defense with Hornady Critical Defense .40 S&W 165 gr ammunition. Part of the acclaimed Critical Defense line, this ammo features the patented FTX bullet, providing consistent expansion through heavy clothing and preventing clogging. With a muzzle velocity of 1175 fps and muzzle energy of 506 ft lbs, it ensures superior terminal performance. The brass casing material offers reliability and durability, making it an excellent choice for performance and protection. Each box contains 20 rounds, engineered for maximum effectiveness in self-defense scenarios.