Description
The CorBon 357 Mag 125gr JHP load is built for shooters who want a proven 357 Magnum round from a company that helped shape modern high-velocity handgun ammunition. Each box holds 20 cartridges loaded with a 125 grain jacketed hollow point bullet rated at 1400 feet per second, producing about 544 foot-pounds of muzzle energy. CorBon designs its JHP bullets to open reliably, even after passing through heavy clothing, and to transfer energy quickly for dependable stopping power. This 357 Mag 125 grain hollow point uses the bullet weight that built the 357 Magnum reputation as a fight-stopping revolver cartridge.

Why Choose the CorBon 357 Mag 125gr JHP
- 125 grain jacketed hollow point bullet
- Rated 1400 fps muzzle velocity, 544 ft-lbs energy
- Designed for reliable expansion through heavy clothing
- Reloadable brass cases with boxer primers
- 20 rounds per box, item SD357125/20
Built for Personal Protection
- Carry and home-defense handguns chambered in 357 Magnum
- Shooters who want a high-velocity defensive load
- Practice sessions to confirm point of impact with your carry ammo
- Keeping one consistent lot of ammo in your carry gun and range bag
Before you trust any new defensive load, fire at least 50 to 100 rounds through your handgun to confirm it feeds, fires and ejects reliably and that the point of impact matches your sights. Rotate your carry ammo every so often, and store the rest in a cool, dry place in the original box so the cartridges stay clean and easy to identify by lot number.
Because a 357 Magnum revolver can also fire 38 Special cartridges, many owners practice with lighter 38 Special loads and then confirm their point of impact with the CorBon 357 Mag 125gr JHP before carrying it. Fire enough full-power rounds to get comfortable with the recoil and muzzle blast, especially from a short-barrel revolver.
A full-power magnum load produces noticeable muzzle flash and blast, so it is worth practicing a few cylinders in low light at the range if your facility allows it. Knowing how the CorBon 357 Mag 125gr JHP feels and sounds before you ever need it helps you stay focused on the sights and trigger.
Specifications
- Brand: CorBon
- Product Line: Self Defense JHP
- Caliber: 357 Magnum
- Bullet Weight: 125 grains
- Bullet Type: jacketed hollow point (JHP)
- Muzzle Velocity: 1400 fps
- Muzzle Energy: 544 ft-lbs
- Case: Brass, reloadable
- Primer: Boxer
- Quantity: 20 rounds
- Item Number: SD357125/20
- UPC: 757750357082
Why Choose CorBon 357 Mag Ammo
Law enforcement agencies relied on 125 grain 357 Magnum hollow points for decades, and the CorBon load carries that tradition forward. At a rated 1400 fps, the JHP opens quickly and dumps its energy in the target, while the bullet carries enough weight to reach adequate depth through heavy clothing.
When you compare 357 magnum self defense ammo, the 125 grain weight is often called the classic choice. It pairs well with the Ruger GP100 and SP101, the Smith and Wesson 686, 66 and J-frame magnums, and lever-action carbines chambered in 357 Magnum, where the longer barrel adds even more speed.
CorBon has built high-velocity defensive ammunition in South Dakota since 1982, when the company set out to solve a common problem: hollow points that plugged with clothing and failed to expand. That focus on real-world performance is still at the heart of every box. Corbon 357 mag ammo is loaded to tight standards so shot-to-shot velocity stays consistent, which helps you build confidence in the same load you train with and carry.
Revolver owners who carry for personal protection or keep a 357 Magnum for home defense will find this load a proven, hard-hitting choice. Always confirm your firearm is chambered for 357 Magnum, wear eye and ear protection, and follow all federal, state and local laws.
Browse more handgun ammunition at Mag 5 Firearms, or visit CorBon for more about their full line of loads.









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