Hornady Critical Defense, 40S&W, 165 Grain, Flex Tip, 20 Round Box 91340 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 your vision. Reliable expansion and dependable terminal performance can be counted on for concealed carry and personal protection.