Product SKU # :TS90511 |  MPN: 90511  | UPC # :090255905113

Hornady Ammunition 

Hornady Critical Duty 357 Magnum Ammo 135 Grain FlexLock - 90511

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Hornady Critical Duty 357 Magnum Ammo 135 Grain FlexLock - 90511
USDTargetSportsUSA29.99
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USDTargetSportsUSA299.90
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AVAILABLE : 18 in stock
AVAILABLE : 1 in stock

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You must be 21 years or older to order ammunition. Ammunition must ship UPS ground. Due to safety considerations and legal/regulatory reasons, Ammunition may not be returned. Please check local laws before ordering. By ordering this Ammunition, you certify you are of legal age and satisfy all federal, state and local legal/regulatory requirements to purchase this Ammunition.

Hornady Critical Duty 357 Magnum Ammunition 135 Grain FlexLock - 90511

Hornady's Critical Duty 357 Magnum Ammunition is engineered for law enforcement and self-defense applications. This powerful round features a 135 Grain FlexLock bullet that combines pioneering technology with robust performance metrics, providing exceptional barrier penetration and stopping power. Hornady's innovative design ensures consistent expansion and maximum weight retention, making it an ideal choice for professionals and individuals seeking reliable stopping ability and superior ballistic performance. The 357 Magnum FlexLock ammunition is designed to perform under the most demanding conditions, delivering the consistent results that law enforcement and self-defenders require.

Features and Specifications:

  • Compatibility: Designed specifically for use with handguns chambered in 357 Magnum.
  • Performance Metrics: Achieves a muzzle velocity of 1,275 fps and muzzle energy of 487 ft-lbs for high-impact performance.
  • Technology Enhancements: Equipped with FlexLock technology for enhanced expansion and penetration.
  • Versatile Use Cases: Ideal for self-defense and law enforcement duty applications.
  • Packaging Options: Available in a box of 25 or a case of 250 rounds.
  • Case Design: Utilizes nickel-plated brass for reliable feeding and corrosion resistance.
  • Primer Type: Features a Boxer primer that ensures reliable ignition.

Deep Dive

Overview

The Hornady Critical Duty 357 Magnum Ammunition is meticulously crafted for self-defense and law enforcement purposes. Its FlexLock technology is engineered to deliver consistent performance across various barriers, ensuring that the bullet retains its weight and maintains a high level of expansion. This makes it particularly effective in real-world scenarios where the target may be obscured by obstacles. The increased stopping power provided by the 135 Grain bullet ensures that threats are neutralized efficiently, boosting the confidence of the user in critical situations.

History and Development

Hornady Ammunition has long been a pioneer in ammunition innovation, focusing on creating rounds that meet the rigorous standards of law enforcement agencies. The development of the Critical Duty line stemmed from a need to supply officers with reliable ammunition that performs exceptionally well against barriers such as auto glass and heavy clothing, without sacrificing terminal performance. The FlexLock bullet was born out of this necessity, resulting in a design that integrates a mechanical locking band to hold the jacket and core together during expansion. This commitment to excellence and iteration on design has positioned Hornady as a leader in premium defense ammunition.

Common Questions and FAQs

  • How is this ammunition packaged, and are bulk options available?
    This ammunition is sold in 25-round boxes with the option to purchase 250-round cases. Bulk purchases often feature advantageous shipping rates, making them cost-effective for frequent shooters.
  • Is the Hornady Critical Duty 357 Magnum Ammunition ideal for everyday carry?
    Yes, its design for self-defense applications makes it suitable for everyday carry in compatible firearms.
  • Can this ammunition penetrate barriers effectively?
    Yes, the FlexLock technology provides excellent barrier penetration while still ensuring expansion and energy transfer to the target.
  • Is this ammunition reloadable?
    Yes, it features a Boxer primer and nickel-plated brass case, making it reloadable.
  • Are there any special storage recommendations for this ammunition?
    As with all ammunition, store in a cool, dry place to maintain optimal performance and reliability.
  • Is this product safe for use in all 357 Magnum firearms?
    Ensure your firearm is in good condition and compatible with 357 Magnum ammunition for safe usage.

The 'Round Up'

Perfect Fit for:

  • Self-Defense / Law Enforcement Duty

Why It Stands Out:

The Hornady Critical Duty 357 Magnum 135 Grain FlexLock ammunition stands out in the market for its reliable performance tailored to the needs of law enforcement and self-defense applications. With features such as FlexLock technology and a robust design that ensures consistent barrier penetration, this ammunition offers high-impact energy transfer and expansion capabilities. Its versatile application and proven performance make it a trusted choice for security professionals and defensive shooters alike.

Field Details
SKU90511
UPC090255905113
ManufacturerHornady Ammunition
PlatformHandguns
Ammo ApplicationSelf-Defense / Law Enforcement Duty
Ammo TypeFlexLock
Caliber357 Magnum
Grain Weight135
Quantity Per PackageBox of 25 / Case of 250
Test Barrel LengthNot Provided
Muzzle Velocity1,275 fps
Muzzle Energy487 ft-lbs
Ballistic Coefficient (G1).17
Case TypeNickel-Plated Brass
Primer TypeBoxer
CorrosiveNo
ReloadableYes
Lead FreeNo
Staked PrimerNot Provided
Country of OriginUSA

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SHIPPING AMMUNITION


Attention Ammunition Buyers You must be 21 years or older to order ammunition. Ammo must ship UPS/FedEx Ground. For safety reasons, we cannot accept returns on ammo. Always, make sure that you use the correct ammunition for your gun. Please check local laws before ordering.


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Proposition 65 Warning
 This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.p65warnings.ca.gov.

Reviews

82 Customer Review(s)
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Comments and Reviews on Hornady Critical Duty 357 Magnum Ammo 135 Grain FlexLock - 90511
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Excellent Home Defense and EDC ammo
Reviewed by Peter  K
10/15/2025 11:23:11 AM
Comments and Reviews on Hornady Critical Duty 357 Magnum Ammo 135 Grain FlexLock - 90511
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Great ammo for the price. Solid function on this round from Hornady Critical Duty! Shipped fast from TSUSA!
Reviewed by Louis  F
8/24/2025 6:08:08 PM
Comments and Reviews on Hornady Critical Duty 357 Magnum Ammo 135 Grain FlexLock - 90511
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Great ammo from Hornady Critical Duty. Difficult to find and this price is excellent, thanks TSUSA.
Reviewed by Patrick  J
8/17/2025 6:28:22 PM
Comments and Reviews on Hornady Critical Duty 357 Magnum Ammo 135 Grain FlexLock - 90511
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Solid ammo from Hornady Critical Duty! Fast delivery from Target Sports USA! Thank you TSUSA!
Reviewed by Logan  B
8/17/2025 8:15:05 AM
Comments and Reviews on Hornady Critical Duty 357 Magnum Ammo 135 Grain FlexLock - 90511
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Great Product, reliable ammo from Hornady Critical Duty. Great service from Target Sports USA.
Reviewed by Aaron  D
7/30/2025 10:13:23 AM
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About Hornady Ammunition

Hornady Ammunition is proudly made in the USA and built for shooters who demand accuracy and consistency. Offering a full range of handgun, rifle, and hunting loads, Hornady is known for popular lines like Critical Defense®, American Whitetail®, Frontier®, and Precision Hunter®. With advanced engineering and strict quality control, Hornady bullets deliver reliable expansion, optimal velocity, and tight groupings. Target Sports USA offers Hornady ammo for sale in bulk across top calibers like 9mm Luger ammo, .223 Rem ammo, 6.5 Creedmoor ammo, and .308 Win ammo, with free shipping.

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