The Hornady Critical Duty Handgun Ammo 357 Sig 135 gr FlexLock delivers the trusted Critical Duty series performance many law enforcement and security professionals choose for demanding urban barrier scenarios, pairing the FlexLock bullet with a Flex Tip to reduce clogging and maintain reliable expansion through heavy barriers, clothing, and glass; with a 135?grain Hornady FlexLock projectile producing roughly 1225 fps and about 450 ft?lbs of energy from appropriate 357 Sig platforms, this load offers consistent terminal performance for home defense, duty carry, and defensive training where barrier-stopping capability matters. The nickel?plated brass cases promote reliable feeding and extraction in semiautomatic handguns while the American origin and Hornady reputation make this round a go-to option for agencies and private citizens seeking barrier-optimized handgun ammunition. If you run defensive drills, duty qualification, or configure a carry loadout for environments with intermediate barriers, the Critical Duty lineup and its Flex Tip design provide the penetration/expansion balance you need, and the recognizable Hornady Critical Duty branding ensures your ammo selection aligns with modern law enforcement ballistic standards.