Hornady Critical Defense .45 ACP ammunition is a dependable handgun self-defense round that includes the FTX bullet with hollow point polymer tip for maximal ballistic performance and controlled expansion. Additionally, this ammo's unique design allows it to feed reliably in pistols. Critical Defense brass cases are nickel plated to prevent corrosion and the low-flash propellants make it significantly easier to see in low light environments. Hornady offers Critical Defense ammunition with the Flex Tip eXpanding bullet in most pistol calibers, making it a great choice for virtually any concealed carry gun. Join the ranks of people who trust Hornady to defend themselves. "Ten bullets through one hole" is the philosophy that brought Hornady Manufacturing from a two-man operation in 1949, to a world-leading innovator of bullet, ammunition, reloading tool and accessory design and manufacture today. Hornady outperforms their competitors by ensuring the products they make are what the customers want right now, and then accurately predict and manufacture what they'll want and need in the future. Features and Specifications: Manufacturer Number: 90900 Hornady .45 ACP Ammunition 20 Rounds FTX HP 185 Grains Caliber: .45 ACP Bullet Weight: 185 GrainsBullet Type: Hornady FTX Hollow Point (HP) Bullet Rounds: 20 Rounds per box Muzzle velocity: 1000 fps Muzzle energy: 411 ft/lbs Jacket Material: Copper Core Material: Lead Tip Material: none Ballistic Coefficient: .140 Sectional Density: .130 Casing: Reloadable Nickel Plated Brass Case Uses: Self Defense, Home Protection, and Duty Ammunition