Hornady Critical Duty 357 SIG 135gr FlexLock - 20 Round Box

The Hornady Critical Duty 357 SIG 135gr FlexLock delivers consistent barrier penetration and terminal performance for law enforcement and personal protection applications. This premium duty ammunition features Hornady's advanced FlexLock bullet technology engineered to overcome common expansion barriers that defeat standard hollow point designs.

What Makes This Different

The FlexLock bullet incorporates a red polymer tip that initiates expansion while the InterLock band prevents jacket-core separation during barrier penetration. Unlike conventional hollow points that can clog when passing through heavy clothing or wallboard, the FlexLock design maintains its expansion characteristics through FBI protocol barriers. Independent testing shows consistent expansion and penetration depths between 12-18 inches in ballistic gelatin across all barrier tests.

Key Features

• 135-grain FlexLock bullet with polymer tip for reliable expansion
• InterLock band prevents jacket-core separation during barrier penetration
• Nickel-plated cases resist corrosion and ensure smooth feeding
• Low-flash propellant reduces muzzle signature in low-light conditions
• Meets FBI Protocol testing standards for duty ammunition
• Consistent velocities across temperature extremes
• Compatible with all 357 SIG chambered firearms

Field testing demonstrates the Critical Duty line's ability to penetrate automotive glass, heavy clothing, and wallboard while maintaining expansion characteristics. The 357 SIG cartridge delivers flat trajectory and substantial energy transfer, making it effective for both duty carry and personal protection scenarios. The nickel-plated cases provide reliable extraction in semi-automatic pistols under adverse conditions.

Technical Specs

• Caliber: 357 SIG
• Bullet Weight: 135 grains
• Bullet Type: FlexLock with polymer tip
• Muzzle Velocity: 1,225 fps (approximate)
• Muzzle Energy: 449 ft-lbs (approximate)
• Case Material: Nickel-plated brass
• Primer: Non-corrosive
• Quantity: 20 rounds per box
• Manufactured: United States

The Critical Duty line represents Hornady's commitment to barrier-blind performance in duty ammunition. Law enforcement agencies nationwide have adopted this ammunition for its predictable terminal ballistics and reduced liability concerns associated with over-penetration.