Hornady Critical Duty 357 Magnum 135gr FlexLock Duty - Self-Defense Am

Hornady Critical Duty 357 Magnum 135gr FlexLock is the revolver option in the Critical Duty line — developed for law enforcement agencies that carry .357 Magnum revolvers as primary or backup duty weapons and need ammunition that meets the same FBI barrier performance standards as their semi-automatic counterparts.

The FlexLock bullet is engineered to expand reliably after penetrating automotive glass, wallboard, and heavy clothing — the FBI barrier protocol tests that any duty ammunition must pass. At 135 grains, this FlexLock load meets FBI barrier protocol requirements — expansion is consistent through heavy clothing and intermediate barriers at defensive velocities. Nickel-plated brass eases chamber checks in low-light conditions and holds up better than standard brass during extended carry cycles.

• Caliber: 357 Magnum
• Bullet Weight: 135gr
• Bullet Type: FlexLock
• Case: Nickel-plated brass
• Propellant: Low-flash formulation
• Quantity: Box of 25
• Origin: Made in USA

Designed for 357 Magnum revolvers and lever-action rifles chambered in .357 Magnum. .357 Magnum generates roughly double the muzzle energy of .38 Special from the same barrel length. Low-flash propellant preserves night vision during low-light defensive use — important in the scenarios where defensive ammunition is most likely to be called upon.

Loaded to consistent velocity specifications with tight lot-to-lot controls. The nickel-plated case resists the moisture and corrosion that can develop during extended daily carry, keeping rounds in ready condition over weeks and months in a holster.

Trusted by civilians and off-duty law enforcement for duty sidearm use in 357 Magnum platforms. Feeds reliably in compact and subcompact defensive pistols where feed ramp geometry is less forgiving than full-size service pistols.

Hornady Critical Duty is used by law enforcement agencies across the United States — loaded in Grand Island, Nebraska to the same specifications that earned it a place on department approved lists.