Description
This Buffalo Bore load brings the 357 Sig back to what it was engineered to do. When SIG Sauer and Federal developed this cartridge in the early 1990s, they designed it to match 125-grain .357 Magnum ballistics in a semi-automatic platform. Over the years, most manufacturers dialed it back. Buffalo Bore didn't. These rounds run at the full 1425 fps velocity you're supposed to get from a 4-inch barrel, backed by 564 ft-lbs of energy.
About the Buffalo Bore 357 Sig Load
The 125-grain full metal jacket flat-nose design isn't fancy. It's practical. The flat nose profile feeds reliably through magazine-fed pistols and creates easily visible holes on paper for quick feedback at the range. The full metal jacket construction means minimal lead exposure and straightforward cleanup after a day of shooting. What matters is that these rounds perform exactly as advertised, using real-world barrel lengths instead of lab test numbers.
Flash-Suppressed Powder and Range Use
The load uses flash-suppressed powder, which matters more than some folks realize when you're shooting indoors or in low-light conditions. Your own muzzle flash won't ruin your night vision or distract from your sight picture. The brass casings are reloadable for those who reload, and the ammunition is factory-new so you know what you're getting.
Why This Round Makes Sense
If you're running a 357 Sig, you're probably doing it because you wanted a hotter cartridge than 9mm. Buffalo Bore delivers on that promise. These aren't dumbed-down practice rounds. They're genuine full-power loads that hit as hard as the cartridge allows. For range time, training, or serious target work where you want ammunition that performs like the specs say it should, these deliver without guesswork.
Key Specifications
- Caliber: .357 Sig
- Bullet Weight: 125 grains
- Bullet Type: Full Metal Jacket Flat Nose (FMJ-FN)
- Case Type: Brass
- Rounds Per Box: 20
- Muzzle Velocity: 1425 feet per second
- Muzzle Energy: 564 foot-pounds
- Powder Type: Flash-Suppressed
- Manufacturer: Buffalo Bore Ammunition
- Manufacturer Part Number: 25B20
- UPC: 651815025025
What’s Included
- 20 rounds of 357 Sig ammunition, brass-cased
Frequently Asked Questions
How does this Buffalo Bore 357 Sig load compare to standard 357 Sig ammo?
Buffalo Bore loads this to the full 1425 fps that the 357 Sig was originally designed to achieve from a 4-inch barrel. Many factory loads from other manufacturers run significantly slower. You get the ballistics the cartridge was meant for without compromise.
Is the flat-nose FMJ design good for target shooting?
Yes, the flat-nose profile feeds reliably and creates clearly visible holes on paper so you can see your groups easily at any distance. The full metal jacket construction means clean, predictable ballistics with minimal fouling.
What does the flash-suppressed powder do?
Flash-suppressed powder reduces muzzle flash, which is helpful when shooting indoors or in low-light conditions where full muzzle flash can wash out your sight picture or night vision. Buffalo Bore uses it across their heavy loads for this tactical advantage.
Are the brass casings reloadable?
Yes, Buffalo Bore uses boxer-primed brass that is suitable for reloading if you reload ammunition. This makes the rounds good value if you plan to reload after range use.




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