Hornady Critical Defense Features The Hornady Critical Defense Flex Tip eXpanding bullet uses the same soft polymer tip technology found in Hornady s LEVERevolution ammunition to solve a longstanding problem with conventional hollow point defensive bullets. Traditional hollow points can clog with heavy clothing material and fail to expand as designed but the Flex Tip pushes debris out of the cavity on impact ensuring reliable expansion every time. At 40 grains and traveling 1810 fps this load generates 291 ft lbs of muzzle energy from a cartridge known for flat trajectory and reduced recoil. Nickel-plated cases make it easier to visually confirm a loaded chamber or locate spent brass in low-light defensive situations. Premium low-flash propellant keeps muzzle flash to a minimum an important consideration for shooters who may need to fire in low-light conditions without disrupting their own night vision. Since its inception Critical Defense ammunition has focused on solving the reliability gaps that conventional pistol bullets have never fully closed. Twenty-five rounds per box gives shooters a practical supply for practice and carry rotation. For 5.7x28mm pistol owners who want dependable expansion and low-flash performance for personal protection Hornady Critical Defense remains a purpose-built choice. Hornady Critical Defense Specifications Brand: Hornady Model: Critical Defense Caliber: 5.7x28mm Bullet Weight: 40 gr Bullet Type: Flex Tip eXpanding Muzzle Velocity: 1810 fps Muzzle Energy: 291 ft lbs Case Material: Nickel-Plated Brass Rounds Per Box: 25 Available At: GrabAGun