Description
The CorBon 357 Mag 125gr DPX 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 DPX solid copper hollow point bullet rated at 1300 feet per second, producing about 469 foot-pounds of muzzle energy. The DPX bullet is a solid copper hollow point made by Barnes, so it opens into sharp petals while keeping nearly all of its weight, with no lead core that can separate from a jacket.
This 357 Mag 125 grain solid copper load is rated from a 4 inch barrel, a length that matches many carry and home-defense revolvers.

Why Choose the CorBon 357 Mag 125gr DPX
- 125 grain Barnes solid copper DPX bullet
- Rated 1300 fps muzzle velocity, 469 ft-lbs energy
- Retains nearly all of its weight for deep, consistent penetration
- Designed to perform through heavy clothing and barriers
- 20 rounds per box, item DPX357125/20
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.
Solid copper bullets are longer than lead-core bullets of the same weight, so fire a few cylinders of the CorBon 357 Mag 125gr DPX to confirm your point of impact and get used to the recoil and muzzle blast before you carry it.
Specifications
- Brand: CorBon
- Product Line: DPX
- Caliber: 357 Magnum
- Bullet Weight: 125 grains
- Bullet Type: DPX solid copper hollow point (DPX)
- Muzzle Velocity: 1300 fps
- Muzzle Energy: 469 ft-lbs
- Case: Brass, reloadable
- Primer: Boxer
- Quantity: 20 rounds
- Item Number: DPX357125/20
- UPC: 757750357150
Why Choose CorBon 357 Mag Ammo
A solid copper bullet does not rely on a lead core, so it holds its weight and drives deep even after striking heavy clothing or other barriers. At a rated 1300 fps and 469 foot-pounds, the CorBon 125 grain DPX gives the 357 Magnum reliable expansion with consistent penetration, shot after shot.
When you compare 357 magnum self defense ammo, the DPX stands out for performance that holds up across different barriers. It pairs well with the Ruger GP100 and SP101, the Smith and Wesson 686 and J-frame magnums, and lever-action carbines 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, keep a 357 Magnum for home defense or carry one outdoors will find this load a versatile 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.









Reviews
There are no reviews yet.