Description
Sig Sauer Elite Ball .357 Magnum 125 Grain Full Metal Jacket (FMJ) Ammo
High-velocity American-made .357 Magnum training ammunition engineered to match the trajectory, point of impact, and recoil profile of Sig V-Crown defensive rounds. Sig Sauer Elite Ball 125gr FMJ combines premium reloadable brass cases, non-corrosive Boxer primers, and clean-burning propellants in a 50-round box.
Product Overview
Sig Sauer Elite Ball .357 Magnum 125 grain FMJ ammo (Part #E357MB50) offers match-grade accuracy and premium components for high-volume range training, tactical target shooting, and competitive practice. Designed under Sig Sauer’s “Train as You Carry” philosophy, this load mimics the velocity and felt recoil of Sig’s V-Crown defensive line to ensure seamless skill translation from practice to real-world self-defense.
Featuring a 158-grain Full Metal Jacket (FMJ) projectile, this round delivers flat trajectories and consistent cycling across both revolver and lever-action carbine platforms. Clocking in at an impressive 1,450 fps out of a standard test barrel, it generates 584 ft-lbs of muzzle energy. Built with durable reloadable brass casings, clean-burning powder blends, and dependable Boxer primers, it minimizes fouling to keep your firearm running cleaner during extended range sessions.
Technical Specifications
| Brand / Manufacturer | Sig Sauer – Elite Performance |
| Manufacturer Part # | E357MB50 / E357MB |
| Caliber | .357 Magnum (.357 Mag) |
| Bullet Weight | 125 Grain |
| Bullet Type | Full Metal Jacket (FMJ) |
| Muzzle Velocity | 1,450 fps |
| Muzzle Energy | 584 ft-lbs |
| Ballistic Coefficient (G1) | 0.145 |
| Casing Material | Brass |
| Primer Type | Boxer, Non-Corrosive |
| Primary Use | Target Practice, Range Training, Plinking |
| Rounds per Box | 50 |
Ballistic Performance Data
| Distance | Velocity (fps) | Energy (ft-lbs) |
|---|---|---|
| Muzzle | 1,450 | 584 |
Muzzle data per manufacturer specifications measured from standard test barrels. Velocities from shorter revolver barrels or longer lever-action carbines will vary. Downrange ballistic figures are not published for this training load.
Key Benefits
- Defensive Load Matching: Specifically engineered to mirror the ballistics and recoil impulse of Sig Sauer V-Crown defensive rounds for realistic training.
- High-Velocity Performance: Pushes a 125gr projectile at 1,450 fps for high energy and flat trajectory downrange.
- Made in the USA: Manufactured in Newington, New Hampshire using strict quality control standards.
- Reloadable Brass Cases: Premium brass cases with non-corrosive Boxer primers ensure durability and ease of reloading.
Compatibility & Usage Notes
This ammunition is intended for firearms chambered in .357 Magnum that are in good working condition. Do not attempt to load or fire .357 Magnum cartridges in handguns designated solely for .38 Special, as excessive chamber pressures can cause severe firearm damage or personal injury. Store ammunition in a cool, dry place away from children and unauthorized users.
Frequently Asked Questions
Can I fire Sig Sauer Elite Ball .357 Magnum in a .38 Special revolver?
No. The .357 Magnum cartridge is longer and operates at much higher chamber pressures than .38 Special. It will not chamber in .38 Special cylinders and should never be used in them.
Is Sig Sauer Elite Ball .357 Mag brass reloadable?
Yes. Sig Sauer uses high-quality factory brass cases and standard non-corrosive Boxer primers.
Is Full Metal Jacket (FMJ) ammo good for personal defense?
FMJ rounds are designed primarily for range training, target shooting, and practice because they do not expand upon impact. For self-defense, expanding hollow point (JHP) rounds like Sig V-Crown are recommended.
