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The Cor-Bon 357 Sig 125 grain JHP puts serious velocity to work where it matters most. These rounds reach 1425 feet per second out of a standard handgun barrel, delivering the extra speed that helps hollow points expand reliably even through heavy clothing. That's not just marketing talk either. Cor-Bon has been building high-velocity defensive loads since the early 1980s, and this 357 Sig load carries forward that same philosophy.
The 125 grain JHP bullet uses internal and external serrations along with a soft lead cavity specifically designed to expand quickly under velocity. Testing shows this ammunition achieves between 9 to 15 inches of penetration in ballistic gelatin, which puts it squarely in the range needed for reliable defensive performance. The load balances sufficient penetration with controlled expansion so the bullet transfers energy into the target rather than sailing through and beyond.
Cor-Bon engineered these rounds with flash-suppressed powder, which means you won't be blinded by muzzle flash if you need to use them in low light conditions. The ammunition uses brass cases loaded to realistic pressures, not watered-down factory loads, so you get the ballistics the 357 Sig was designed for. From a 4-inch carry gun barrel, this load performs nearly identically to the ballistics 357 Magnum revolvers achieved, but with the capacity advantage of a semi-automatic platform.
For defensive use or serious practice where consistency matters, this ammunition delivers the kind of reliable performance that keeps users coming back. Many instructors recommend Cor-Bon specifically for this caliber because the velocity advantage translates to genuinely better expansion in real-world scenarios.
The 357 Sig delivers roughly 250 feet per second more velocity than most standard 9mm loads, which means significantly more muzzle energy and improved barrier penetration. That velocity advantage helps hollow point bullets expand reliably even through heavy clothing, something that matters in defensive scenarios. The trade-off is more felt recoil, which some shooters prefer for immediate feedback during training.
Cor-Bon loads this ammunition to realistic pressures and chambers specs, so it should feed without issues in firearms properly chambered for 357 Sig. That said, some 357 Sig pistols have been known to be picky about ammo. If you're new to the caliber, fire a few rounds through your specific gun at the range before carrying it for defense.
Yes, but it's not cheap practice ammo. These are purpose-built defensive rounds, so they're priced accordingly. Many people run them for serious practice sessions focused on defensive skills rather than high-volume plinking. If you shoot a lot, you'll probably want to buy cheaper range ammo and reserve Cor-Bon for carry and defensive practice.
It means the ammunition is designed to minimize muzzle flash, which keeps your night vision intact and reduces the brilliant flash signature if you need to shoot in low-light conditions. This is standard on most quality defensive ammunition.
| Caliber/Gauge | .357 Sig |
|---|---|
| Cost per Round | 1.00 |
| Grains | 125Gr |
| Manufacturer | |
| Manufacturer Part Number | 357SIG125 |
| Model | |
| Product Type | Hollow Point |
| Units per Box | 20 |
| UPC | 757750355309 |
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