Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The Speer Gold Dot 357 Sig 125-grain bonded jacketed hollow point delivers the molecular-level jacket-to-core bond that law enforcement agencies demand when barrier penetration and expansion consistency cannot be compromised. Chambered in 357 Sig, this load pushes a 125-grain Gold Dot bullet to 1,350 feet per second from typical duty-length barrels, producing 506 foot-pounds of muzzle energy. Speer’s Uni-Cor bonding process fuses jacket and core one molecule at a time, virtually eliminating core-jacket separation through auto glass, drywall, and heavy fabric — the definitive advantage over mechanical-lock hollow points when terminal performance must remain predictable across mixed barriers.
Performance at a Glance
| Spec | Value |
|---|---|
| Caliber | 357 Sig |
| Bullet weight | 125 Grains |
| Bullet type | Bonded Jacketed Hollow Point |
| Muzzle velocity | 1,350 Feet Per Second |
| Muzzle energy | 506 Foot Pounds |
| Rounds/box | 20 Round |
| Case | Nickel Plated |
| Primer | Boxer |
| Corrosive | No |
| Intended use | Self Defense |
| Manufacturer | Speer |
Nickel-plated brass cases resist corrosion in loaded chambers and feed reliably in semi-automatic platforms chambered for 357 Sig — the cartridge designed to replicate 125-grain 357 Magnum ballistics in autoloading pistols. CCI primers ignite consistently across temperature extremes. Cases are reloadable. For more loads engineered for duty and defensive carry, browse our 357 Sig 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 universal rules of firearms safety at all times — treat every firearm as loaded, never point at anything you are not willing to destroy, keep finger off trigger until sights are on target, and know your target and what lies beyond it.
- Verify current federal, state, and local laws governing ammunition possession, transport, and storage in your jurisdiction before ordering.
- This product contains lead, a chemical known to the State of California to cause cancer and reproductive harm. Wash hands thoroughly after handling ammunition or fired cases.
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