The Buffalo Bore Heavy .357 Magnum 125gr load (Buffalo Bore part no. 19D20) adds a 125-grain jacketed hollow point to the .357 Magnum at a listed 1,700 fps. Buffalo Bore lists it at 802 ft-lbs of muzzle energy, and publishes real-gun velocities from revolvers of different barrel lengths rather than relying on test barrels. It reaches 1,476 fps from a 3-inch S&W J frame, 1,603 fps from a 4-inch L frame and 1,707 fps from a 6-inch Ruger GP100. Buffalo Bore says the load is safe in any all-steel .357 revolver, J frames included, and no harder on the gun than normal .357 ammunition.

Key Specifications

• Chambering is .357 Magnum, the cartridge this Heavy load is built for.
• Bullet weight is 125 grains, the weight Buffalo Bore lists on the item header.
• The bullet is a jacketed hollow point, listed by Buffalo Bore as J.H.C. on the product header.
• Muzzle velocity is listed at 1,700 fps, a figure that shows what the load can do from a longer barrel.
• Muzzle energy is listed at 802 ft-lbs, Buffalo Bore’s published figure.
• From a 3-inch S&W J frame the load reached 1,476 fps, a short-barrel reading from Buffalo Bore’s own testing.
• From an 18.5-inch Marlin 1894 the load reached 2,298 fps, a lever-gun reading.
• Each box holds 20 rounds, the pack size Buffalo Bore lists for this load.

Frequently Asked Questions

Is this load safe in a J frame revolver? Buffalo Bore says it is safe in any all-steel .357 revolver, including J frames, and no harder on the gun than any other normal .357 ammunition, provided the gun is in safe condition.

Can I use it in a lightweight alloy revolver? Buffalo Bore does not recommend it in super-light alloy revolvers, because the bullets may jump the crimp under recoil, although it says the ammunition itself will not hurt them.

How fast is it from a rifle? Buffalo Bore published 2,298 fps from an 18.5-inch Marlin 1894.

Buy the Buffalo Bore Heavy .357 Magnum 125gr Jacketed Hollow Point Ammo, 20-Round Box

Buffalo Bore published velocities for this load from revolvers of several barrel lengths and from a lever rifle, so you can see what to expect from your own gun. Order it from our Lubbock, Texas gun shop with the rest of Buffalo Bore‘s handgun ammunition for fast, insured shipping to your door.