357 Magnum Ammo

Overview of .357 Magnum Ammo

Developed in 1934 by Smith and Wesson in collaboration with Winchester, .357 Magnum was the most powerful commercial handgun cartridge in the world at its introduction and launched what became known as the Magnum era of handgun ammunition. It fires a .357-inch diameter bullet in weights from 110 to 180 grains at muzzle velocities of 1,200-1,600 fps from a full-size revolver barrel, producing 500-750 ft-lbs of muzzle energy. That is roughly double the energy of standard-pressure .38 Special and well ahead of most common semi-automatic pistol cartridges.

One of the most practical advantages of .357 Magnum is its versatility: every .357 Magnum revolver safely fires .38 Special ammunition, giving shooters a low-cost, low-recoil option for practice while retaining full magnum capability when needed.

Popular .357 Magnum Brands We Carry

• PMC .357 Magnum Ammo: Bronze 158gr JSP (357A) in 1,000-round cases, our lowest cost-per-round .357 Magnum option and a reliable choice for range training and hunting
• Black Hills .357 Magnum Ammo: 125gr JHP, 158gr JHP, and the 127gr HoneyBadger fluted solid copper load for barrier-blind terminal performance
• Federal .357 Magnum Ammo: including American Eagle 158gr JSP for range use and Hydra-Shok JHP for defensive carry
• Hornady .357 Magnum Ammo: Critical Defense 110gr FTX for concealed carry revolvers and XTP 158gr JHP for hunting applications

Best .357 Magnum Ammo for Specific Uses

Why Buy .357 Magnum Ammo from BulkMunitions?

• In stock and ready to ship. We only list ammunition that is physically in our warehouse. No backorders.
• Next-business-day shipping from our Knoxville, TN warehouse on orders placed before our daily cutoff.
• Bulk pricing on top brands. PMC Bronze 158gr JSP in 1,000-round cases delivers some of the lowest .357 Magnum cost-per-round pricing available online.
• We tithe 10% of profits to Christian-based, 2A-supporting organizations every quarter, and our customers vote on where it goes.

Frequently Asked Questions

Can I shoot .38 Special in a .357 Magnum revolver?

Yes. Every .357 Magnum revolver safely fires .38 Special ammunition. The .357 Magnum was developed as a lengthened, higher-pressure version of the .38 Special case, and all .357 Magnum cylinders accept both cartridges. Shooting .38 Special is a common and economical way to practice with less recoil, then switch to full-power .357 Magnum loads when needed.

What is the best .357 Magnum bullet weight for self-defense?

125gr JHP loads are the most widely recommended .357 Magnum defensive choice. The 125gr bullet at 1,400-1,500 fps from a 4-inch barrel produces excellent terminal performance and has a well-documented real-world track record. The Black Hills 125gr JHP is one of the most trusted loads in this weight. For carbine use or hunting where deeper penetration matters, the Black Hills 158gr JHP or PMC 158gr JSP are the better choices.

Is .357 Magnum good for deer hunting?

Yes, inside 75-100 yards with a quality JSP or JHP load from a 4-inch or longer barrel. A 158gr load delivers adequate energy for clean kills on deer and hogs at pistol hunting distances with good shot placement. From a lever-action carbine, .357 Magnum produces meaningfully more velocity, extending practical hunting range to around 150 yards. Browse our rifle ammo selection for additional hunting calibers at longer ranges.

More About .357 Magnum Ammo

Developed in 1934 by Smith and Wesson's D.B. Wesson, Elmer Keith, and Philip Sharpe in collaboration with Winchester, .357 Magnum was purpose-built to provide law enforcement with a cartridge capable of defeating the early automobile body panels that were giving bootleggers and bank robbers an advantage over officers armed with .38 Special revolvers. The first production revolver, the Smith and Wesson Model 27, was delivered to FBI Director J. Edgar Hoover in 1935.

.357 Magnum remained the dominant U.S. law enforcement cartridge from the 1930s through the 1980s, carried by FBI agents and the majority of state and local police agencies across the country. The transition to semi-automatic pistols in the late 1980s and early 1990s ended its service career, but .357 Magnum retained a strong civilian following for personal defense, hunting, and sport shooting.

Today .357 Magnum is chambered in a wide range of revolvers from compact carry guns to full-size hunting revolvers, as well as lever-action carbines like the Henry Big Boy and Marlin 1894C. In a lever-action carbine with a longer barrel, .357 Magnum velocity increases to 1,800-2,000 fps with 158gr loads, producing rifle-class energy figures that extend its effective range well beyond typical handgun distances. This makes the pairing of a .357 Magnum revolver and lever-action carbine one of the most versatile two-firearm combinations available for hunting, homesteading, and general rural use.