Hornady American Gunner .357 Magnum 125 Grain XTP JHP Ammo - Box of 25
- Capacity-Rounds:
- 25
- Style:
- XTP Hollow Point
- Caliber-Gauge:
- 357 Magnum
- Grain:
- 125
- Muzzle Velocity:
- 1500
- Application:
- Home Defense
- Muzzle Energy:
- 624 ft lbs
- HazAir:
- Yes
The Hornady American Gunner .357 Magnum 125 Grain XTP JHP is a centerfire handgun round built for hunters, sport shooters, and those carrying for self-defense. Hornady's American Gunner line draws on generations of ballistics expertise to deliver consistent, reliable performance in a mid-power magnum platform. The 125-grain XTP (eXtreme Terminal Performance) bullet has earned its reputation across decades of use in hunting, law enforcement, and competition—a proven design that balances accuracy with terminal effectiveness in the field or at the range.
What sets these loads apart is attention to the fundamentals: matched propellants dialed in for each specific load, quality primers, and Hornady-manufactured cases all working together to minimize variation shot-to-shot and lot-to-lot. That consistency matters whether you're zeroing a hunting revolver, practicing defensive drills, or working up loads for precision shooting. Made in the USA, these rounds bring no-nonsense reliability to a cartridge that's been a standard in .357 Magnum rifles and handguns for generations.
A 25-round box gives you enough to pattern a load or work through a range session without breaking the bank. If you run a .357 Magnum—whether it's a lever gun, a service revolver, or a semi-auto carbine—American Gunner ammunition offers the kind of straightforward performance and consistency that builds confidence in your shooting.
Key Features
- XTP (eXtreme Terminal Performance) bullet design for accuracy and consistent terminal performance
- Matched propellant load for optimized pressure and velocity consistency
- Quality Hornady cases and primers for reliable ignition and case integrity
- Made in the USA with premium components
- 25 rounds per box
Specifications
| Cartridge | .357 Magnum |
| Bullet Weight | 125 Grains |
| Bullet Type | XTP JHP (Jacketed Hollow Point) |
| Rounds Per Box | 25 |
| Manufacturer | Hornady |
| Country of Origin | USA |
Frequently Asked Questions
What firearms can I use Hornady American Gunner .357 Magnum ammunition in?
.357 Magnum ammunition is compatible with revolvers, lever-action rifles, and semi-automatic carbines chambered in .357 Magnum. Always verify your firearm's chamber marking before loading.
Is this ammo suitable for hunting?
Yes. The 125-grain XTP bullet is designed for hunting applications, making this round appropriate for medium-game hunting where .357 Magnum is legal and suitable.
What's the difference between XTP and other Hornady bullet designs?
The XTP (eXtreme Terminal Performance) bullet is engineered for controlled expansion and consistent penetration, delivering reliable terminal performance across a range of velocities. Hornady has refined this design over decades for use in hunting, self-defense, and law enforcement roles.
How many rounds come in a box?
Each box contains 25 rounds.
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]

