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The 140-grain 357 Magnum from Cor-Bon is purpose-built for self-defense carry. It sits in the sweet spot of the 357 Magnum lineup, offering a balanced approach between lighter and heavier defensive loads. This weight gives you good velocity without harsh recoil characteristics, making follow-up shots more manageable when it counts.
The bullet design focuses on what made Cor-Bon a household name in the industry starting back in 1982. The jacketed hollow point features both internal and external serrations along with a soft lead cavity. These work together to ensure the bullet expands reliably when it hits. The company uses flash-suppressed powder in the load, keeping muzzle flash manageable if you ever need this round for home defense in low-light situations. A 1300 fps muzzle velocity provides the energy needed for dependable expansion.
Ballistic gelatin testing shows an average penetration depth of 9 to 15 inches, which puts this round right in the practical zone for personal protection. You get enough penetration to reach vital organs through common barriers without the risk of the bullet sailing through and beyond your intended target. The expansion characteristics are consistent, which means the same reliable performance regardless of which round you fire from the box.
This ammunition uses boxer-primed, reloadable brass cases and non-corrosive powder, so if you're into handloading, you can get extra life out of your spent cases. Each 20-round box contains quality components assembled to Cor-Bon's manufacturing standards. The rounds are new production and tested for consistency, making them suitable for practice before carrying or for verifying function in your specific revolver.
The 140-grain 357 Magnum balances velocity and recoil better than either lighter or heavier options. It launches at solid velocity without creating excessive muzzle flash or recoil that would slow down follow-up shots. This weight also provides better velocity retention downrange compared to heavier 158-grain bullets, while avoiding the sharper report of lighter 125-grain loads.
The 357 Magnum rounds will function in any revolver chambered in 357 Magnum, including those that also shoot 38 Special. It will not fit or function in 38 Special-only revolvers. Always verify your revolver's markings and consult the manufacturer's guidelines before firing any ammunition to ensure safe operation.
Cor-Bon has built its reputation on self-defense ammunition since 1982 with a focus on load development and quality control over volume. Many users report consistent velocity within published specs and reliable expansion in testing. The company conducts extensive ballistic testing, though any carry ammunition should be tested in your specific firearm before relying on it for personal protection.
Yes, these rounds use boxer-primed brass cases that are reloadable. After firing, you can use the spent cases for handloading if you have the proper equipment and components. This makes them a more economical choice over time if you're an active reloader.
| Caliber/Gauge | .357 Magnum |
|---|---|
| Cost per Round | 1.10 |
| Grains | 140Gr |
| Length | 3.2000 |
| Manufacturer | |
| Manufacturer Part Number | 357140 |
| Model | |
| Product Type | Hollow Point |
| Shipping Weight | 0.7 |
| Units per Box | 20 |
| UPC | 757750357129 |
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