Description
The Hornady 40 S&W 175gr FlexLock load is built for shooters who want more from their .40 S&W than typical factory ammunition delivers. Hornady loads a 175 grain FlexLock Critical Duty to a rated 1010 feet per second, producing about 396 foot-pounds of energy. Critical Duty ammunition was designed to meet FBI protocol for law enforcement. The FlexLock bullet uses a Flex Tip to prevent clogging and an InterLock band to keep core and jacket together, so it expands reliably and penetrates deeply even through heavy clothing and auto glass.

Why Choose the Hornady 40 S&W 175gr FlexLock
- 175 grain FlexLock Critical Duty bullet
- Rated 1010 fps and 396 ft-lbs
- Brass cases with reliable primers
- Engineered to meet FBI protocol
- 20 rounds per box, item 91376
Built for Personal Protection
- Reliable feeding in modern pistols
- Consistent expansion and penetration
- Quality brass cases and reliable primers
- Suited to concealed carry and home defense
Buying ammunition by the box from the same production lot keeps velocity and point of impact consistent from one range trip to the next. Keep a record of the load you carry, check your ammunition for dents or loose bullets from time to time, and rotate your carry rounds so the ones in your firearm stay fresh. These simple habits help you get the full performance Hornady builds into every cartridge.
Before you trust any new load, fire enough rounds through your firearm to confirm it feeds, fires and ejects reliably and that the point of impact matches your sights. Full-power loads produce more recoil and muzzle blast than typical range ammo, so practice with the Hornady 40 S&W 175gr FlexLock until you are comfortable with it, and store the rest in a cool, dry place in the original box.
The .40 S&W was introduced in 1990 by Smith and Wesson and Winchester as a shorter version of the 10mm Auto that fits in 9mm-sized pistol frames. It quickly became a leading law enforcement cartridge and is still carried by many agencies and private citizens, offering more bullet weight than the 9mm with recoil that most shooters can manage well.
Specifications
- Brand: Hornady Manufacturing
- Product Line: Critical Duty
- Caliber: .40 S&W
- Bullet Weight: 175 grains
- Bullet Type: FlexLock Critical Duty
- Muzzle Velocity: 1010 fps
- Muzzle Energy: 396 ft-lbs
- Case: Brass
- Quantity: 20 rounds
- Item Number: 91376
- UPC: 090255913767
Why Choose Hornady 40 S&W Ammo
Choosing 40 s&w defense ammo comes down to reliable feeding, dependable ignition and consistent bullet performance. This Critical Duty load from Hornady is built with those priorities in mind, using quality components that function smoothly in modern firearms.
The 40 s&w 175 grain critical duty bullet leaves the muzzle at about 1010 fps with roughly 396 ft-lbs of energy. Hornady loads it in quality brass with consistent powder charges for dependable accuracy shot to shot.
Whether you are sighting in, practicing or heading to the field, choosing a proven load like the Hornady 40 S&W 175gr FlexLock removes one more variable, so you can focus on your fundamentals and shoot with confidence every time you pull the trigger.
Hornady has designed and built bullets and ammunition in Grand Island, Nebraska since 1949, and it tests its loads in its own ballistics lab to confirm accuracy and terminal performance. Its Critical Duty line reflects that focus on consistency, and hornady 40 s&w ammo is trusted by hunters, competitors and law enforcement across the country.
undefined Always confirm your firearm is chambered for .40 S&W, wear eye and ear protection, and follow all federal, state and local laws.
Browse more ammunition at Mag 5 Firearms, or visit Hornady Manufacturing for more about their full line of loads.









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