Bulk 357 SIG Ammo
Shop in-stock .357 SIG ammunition in bulk with next-business-day shipping. FMJ and TMJ range ammo and Speer Gold Dot duty loads from Federal, Speer, Winchester, and PPU in 500 and 1,000-round cases. Read more about .357 SIG ammo.
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357 Sig – 125 Gr TMJ-FN – Speer Lawman Cleanfire (54232) – 1000 Rounds
$564.00$0.56 per round Add to cart -
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Overview of .357 SIG Ammo
.357 SIG is a high-velocity semi-auto pistol cartridge designed to match the performance of a 125gr .357 Magnum revolver load. It uses a .40 S&W case necked down to hold a .355-inch bullet, usually 125 grains, at around 1,350 to 1,450 fps. The bottleneck design feeds very reliably, and the high velocity gives flat trajectory and strong barrier penetration, which made it a favorite of several state police agencies and federal law enforcement.
Many .40 S&W pistols can switch to .357 SIG with just a barrel change, since both share the same case head and magazines. For the parent cartridge, see our .40 S&W ammo.
.357 SIG Brands We Carry
- Speer .357 SIG Ammo: Gold Dot 125gr hollow point duty loads and Lawman Clean-Fire 125gr TMJ for training.
- Federal .357 SIG Ammo: American Eagle 125gr FMJ in 1,000-round cases.
- Winchester .357 SIG Ammo: USA 125gr JHP.
- PPU .357 SIG Ammo: 125gr FPJ at a value price.
Best .357 SIG Ammo for Specific Uses
| Use Case | Top Pick | Also Consider |
|---|---|---|
| Range / Training | Federal American Eagle 125gr FMJ | PPU 125gr FPJ |
| Indoor Range / Low Lead | Speer Lawman Clean-Fire 125gr TMJ | Speer Lawman 125gr TMJ-FN |
| Duty / Concealed Carry | Speer Gold Dot 125gr GDHP | Speer Gold Dot 125gr HP (54234) |
| Budget Defensive Ammo | Winchester USA 125gr JHP | Speer Gold Dot 125gr GDHP |
Why Buy .357 SIG 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 a hard-to-find caliber. .357 SIG is rarely stocked in local stores, and 1,000-round cases cut your cost per round.
- 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 .357 SIG in a .357 Magnum revolver?
No. Despite the name, .357 SIG is a bottlenecked semi-auto pistol cartridge, and .357 Magnum is a straight-walled rimmed revolver cartridge. They share a similar bullet diameter but are not interchangeable in any way.
Can I convert my .40 S&W pistol to .357 SIG?
In most cases, yes. Many .40 S&W pistols, including most Glock and SIG Sauer models, can run .357 SIG with a drop-in barrel, since the two cartridges share the same case head and magazines. Check with your pistol's manufacturer to confirm compatibility.
Is .357 SIG better than 9mm?
.357 SIG drives a 125gr bullet several hundred feet per second faster than standard 9mm, giving it more energy and better barrier penetration. The tradeoffs are more recoil, more muzzle blast, higher cost per round, and less ammunition selection, which is why many agencies have returned to 9mm.
More About .357 SIG Ammo
SIG Sauer and Federal introduced .357 SIG in 1994. The goal was to give semi-auto pistol shooters the proven performance of the 125gr .357 Magnum, a load with a strong reputation in police shootings, in a cartridge that fit standard-size service pistols.
Agencies including the Texas Department of Public Safety, the Virginia State Police, and the U.S. Secret Service and Federal Air Marshals adopted .357 SIG in the following years. Its bottleneck case is known for exceptionally reliable feeding, and its velocity helps bullets get through auto glass and other barriers.
Advances in 9mm hollow point design led many agencies to move back to 9mm, but .357 SIG still has a loyal following among shooters who want maximum velocity from a service pistol.
Related reading: 357 SIG vs 9mm: What Is the Difference?