The Buffalo Bore Heavy .357 SIG 125gr load (Buffalo Bore part no. 25B20) pairs a 125-grain full metal jacket flat nose with flash-suppressed powder. Buffalo Bore built its .357 SIG line as full-power loads, aiming for the original 125-grain at 1,425 fps spec out of a four-inch carry barrel rather than a longer test barrel. This FMJ flat nose version is the deep-penetration option: Buffalo Bore says it will smash through typical stick-frame walls, car doors and a bear’s skull or shoulder bones. It recorded 1,433 fps and 575 ft-lbs from a 4-inch Sig Model 229.

Key Specifications

• Chambering is .357 SIG, the cartridge this Heavy load is built for.
• Bullet weight is 125 grains, the weight Buffalo Bore says the cartridge was designed around.
• The bullet is a full metal jacket flat nose, listed as FMJ-FN.
• Muzzle velocity is listed at 1,425 fps, the headline number for the load.
• Muzzle energy is listed at 564 ft-lbs, Buffalo Bore’s published figure.
• The powder is flash-suppressed, so Buffalo Bore says your own gunfire will not blind you in low light.
• From a 4-inch Sig Model 229 the load measured 1,433 fps, a real carry-gun reading.
• Each box holds 20 rounds, the pack size Buffalo Bore lists for this load.

Frequently Asked Questions

What is this FMJ flat nose load designed for? Buffalo Bore designed it for shooters who need deep penetration, saying it should penetrate 24 or more inches in human tissue and will smash through typical stick-frame walls and car doors.

How does it differ from item 25A? Item 25A uses a 125-grain jacketed hollow point designed to open radically, while this item 25B uses the 125-grain full metal jacket flat nose.

Why is the powder flash-suppressed? Buffalo Bore uses flash-suppressed powder so that your own gunfire does not blind you if you have to fire in low light.

Buy the Buffalo Bore Heavy .357 SIG 125gr Full Metal Jacket Flat Nose Ammo, 20-Round Box

The flat-nose profile is the point of this .357 SIG load, so it suits shooters who put penetration ahead of expansion. Order it from our Lubbock, Texas gun shop with the rest of Buffalo Bore‘s handgun ammunition for fast, insured shipping to your door.