The patented flex tip technology used in critical defense ammunition eliminates the clogging and inconsistency that often plagues hollow point bullets.Hornady achieved this by using the same tip material used in leverevolution ammunition.All critical defense ammunition is loaded in nickel-plated cases for increased visibility in low-light situations.Premium low flash propellants deliver proven performance even in very short-barreled handguns and won't disrupt vision.Caliber: 5.7x28mmBullet Type: Flex Tip eXpandingBullet Weight: 40 grRounds Per Box: 25Boxes Per Case: 10Application: Personal DefenseHazair: Yes