Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The Remington UMC 357 Magnum 125 grain semi-jacketed hollow point is a self-defense load delivering 1450 feet per second and 583 foot-pounds of energy from a 4-inch test barrel. The 357 Magnum cartridge is a rimmed, straight-walled revolver round introduced in 1934, and this 125-grain loading represents the balance point between velocity and controllability in medium-frame revolvers. Remington has manufactured ammunition under the Union Metallic Cartridge banner since 1867, and this UMC-branded line maintains first-quality component standards at training-grade pricing.
Performance at a Glance
The semi-jacketed hollow point projectile exposes lead around the cavity opening, a design intended to initiate expansion at revolver velocities. At 1450 fps, this load sits in the upper velocity bracket for 125-grain 357 Magnum offerings. Brass cases are reloadable, and non-corrosive Boxer primers support consistent ignition across temperature ranges.
| Spec | Value |
|---|---|
| Caliber | 357 Magnum |
| Bullet Weight | 125 Grains |
| Bullet Type | Semi-Jacketed Hollow Point |
| Muzzle Velocity | 1450 Feet Per Second |
| Muzzle Energy | 583 Foot Pounds |
| Test Barrel Length | 4 Inches |
| Rounds/Box | 100 Round |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Intended Use | Self Defense |
| Lead Free | No |
| Country of Origin | United States of America |
| Manufacturer | Remington |
You can expect mild recoil increase over 158-grain loads, but cylinder rotation remains smooth in K-frame and larger platforms. For more self-defense and range options, browse our full 357 Magnum ammo selection.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle and shotgun ammunition, and at least 21 for handgun ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Observe the four rules of firearms safety: treat every firearm as if loaded, never point at anything you are not willing to destroy, keep your finger off the trigger until ready to fire, and know your target and what lies beyond it. Review the four rules of firearms safety before handling firearms or ammunition.
- Verify current federal, state, and local laws governing ammunition purchase and possession in your jurisdiction before ordering. Some states impose additional background check, permit, or waiting period requirements.
- This ammunition contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Use adequate ventilation when shooting indoors, and wash hands thoroughly after handling ammunition. Visit www.P65Warnings.ca.gov for more information.
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