Hornady Critical Duty 357 Magnum 135 Grain FlexLock Ammo - Box of 25
- Capacity-Rounds:
- 25
- Style:
- FlexLock
- Caliber-Gauge:
- 357 Magnum
- Grain:
- 135
- Muzzle Velocity:
- 1275
- Application:
- Home Defense
- Muzzle Energy:
- 487 ft lbs
- HazAir:
- Yes
The Hornady Critical Duty 357 Magnum 135 Grain FlexLock Ammo is a purpose-built defensive round designed for shooters who demand reliable, predictable terminal performance in real-world scenarios. This 357 Magnum load pairs Hornady's FlexLock bullet technology with a 135-grain projectile, balancing velocity and energy transfer for defensive applications where barrier performance and shot-to-shot consistency matter.
The FlexLock design is the standout here. Unlike traditional hollow-point rounds that can clog or plug when passing through barriers like clothing, vehicle glass, or drywall, the FlexLock's polymer tip works with the bullet's construction to maintain reliable expansion while resisting clogging. That means more predictable performance whether your shot is clean or complicated by intermediate barriers—a real consideration if you're relying on this round for protection.
Hornady built Critical Duty ammunition specifically for defensive use, with the kind of attention to quality control and consistency you expect from a premium self-defense round. This box contains 25 rounds, giving you a standard practice and carry quantity. Whether you're shooting a revolver or a lever-action rifle in 357 Magnum, this load delivers the dependability that makes it a trusted choice among those who understand the importance of ammunition selection.
Key Features
- FlexLock bullet design resists clogging through barriers and intermediate obstacles
- 135-grain projectile optimized for 357 Magnum defensive performance
- Consistent quality and performance round-to-round
- Suitable for revolvers and lever-action rifles chambered in 357 Magnum
- Box of 25 rounds
Specifications
| Caliber | 357 Magnum |
| Bullet Weight | 135 Grains |
| Bullet Type | FlexLock |
| Quantity per Box | 25 Rounds |
| Manufacturer | Hornady |
| Product Line | Critical Duty |
Frequently Asked Questions
What firearms can I use this 357 Magnum ammo in?
Hornady Critical Duty 357 Magnum ammunition is compatible with any firearm chambered in 357 Magnum, including revolvers and lever-action rifles designed for this cartridge.
What makes the FlexLock design different from standard hollow-point rounds?
The FlexLock bullet features a polymer tip that helps prevent clogging when the round passes through barriers like clothing or intermediate obstacles. This design maintains more reliable and consistent expansion performance in real-world defensive scenarios.
How many rounds come in a box?
Each box contains 25 rounds of Hornady Critical Duty 357 Magnum 135 Grain FlexLock ammunition.
Is this ammunition suitable for defensive use?
Yes—Hornady Critical Duty ammunition is specifically designed for defensive applications, built with the precision and consistency required for self-defense and personal protection scenarios.
Ammunition Restrictions:
You must be 18 years or older to purchase shotgun or rifle ammunition, and 21 years or older for handgun ammunition. All ammunition must be shipped via Domestic Ground, and shipping is not available for international residents. Residents of CA, DC, IL, MA, NY, CT, and NJ may be subject to additional restrictions. Always ensure you use the appropriate ammunition for your firearms, and check your state and local laws for any other relevant regulations on firearms and ammunition. Due to Department of Transportation regulations, returns on ammo cannot be accepted. Please verify local laws before placing an order.
We are unable to ship ammunition to the following:
- Hawaii
- Alaska
- P.O. Boxes
- APO/FPO Addresses
- International Addresses
- U.S. Territories
- U.S. addresses with zip codes starting with (100, 101, 102)
Illinois residents must provide a copy of a valid FOID Card or Valid Concealed Carry License, along with their IL driver’s license or IL state identification card to purchase ammunition. The ammunition can only be shipped to an address listed on either of those two documents.
Email: [email protected]

