The Sellier & Bellot .357 Magnum 158-grain Full Metal Jacket Brass 50-round box is high-grade centerfire ammunition engineered specifically for target practice, defensive drill simulation, and high-volume range training in .357 Magnum revolvers and lever-action carbines. A primary operational limitation when training for defensive or duty applications is the discrepancy in recoil, point of impact, and slide/cylinder impulse between low-velocity .38 Special practice loads and full-power magnum service rounds. Sellier & Bellot resolves this training gap by pairing a traditional 158-grain full metal jacket bullet with true magnum velocity, providing full-power recoil dynamics, flat trajectories, and authentic force feedback for revolver operators and carbine shooters alike.
The core technical advantage relies on the projectile's heavy 158-grain Full Metal Jacket (FMJ) architecture. Featuring a solid lead core fully enclosed within a heavy copper jacket, the bullet eliminates direct barrel contact with bare lead. This design drastically reduces lead vapor emissions upon ignition and limits heavy barrel leading, frame erosion, and cylinder face buildup during high-round-count range sessions. Its classic 158-grain weight delivers a flat, hard-hitting trajectory that mirrors standard service-weight load profiles, cutting crisp, clean holes through paper targets for instant shot placement verification.
Propelling its 158-grain jacketed bullet at a factory-rated 1,263 FPS muzzle velocity (generating 560 ft-lbs of muzzle energy), this loading delivers authentic magnum pressure curves and heavy downrange energy transfer. Assembled in Sellier & Bellot’s high-quality, reloadable virgin brass cases paired with clean-burning propellants and non-corrosive Boxer primers, the cartridge guarantees uniform chamber sealing, crisp ignition, and smooth cylinder ejection across double-action revolvers, single-action wheelguns, and lever-action rifles.
Key Benefits
- Full-Power Magnum Ballistics: 1,263 FPS velocity and 560 ft-lbs energy match service load recoil and point-of-impact.
- Full Metal Jacket Encapsulation: Encloses lead core to suppress lead buildup in barrel grooves and cylinder faces.
- Standard 158-Grain Weight: Delivers authentic recoil impulse and trajectory metrics for defensive training.
- Precision Virgin Brass: Reloadable brass cases and dependable Boxer primers ensure smooth chambering and positive ejection.
Technical Specification
- Caliber: .357 Magnum (.357 Mag)
- Ballistics: 1,263 FPS Muzzle Velocity | 560 Ft-Lbs Muzzle Energy
- Projectile: 158 Grain | Full Metal Jacket (FMJ) | Enclosed Lead Core | Copper Jacket
- Case/Primer: Precision-Drawn Reloadable Virgin Brass | Clean-Burning Powder | Non-Corrosive Boxer Primed
- Logistics: 50 Rounds Per Box | Sellier & Bellot Handgun Ammunition Series
- Dimensions: Standard .357 Magnum SAAMI Geometry | SKU: SB357A
- Application: Target Practice, Range Training, Revolver Drills, Plinking, and Lever-Action Shooting
- Standards: SAAMI / CIP Compliant | Sellier & Bellot Quality Control Standards
Choose SMKW for Sellier & Bellot .357 Magnum 158gr FMJ ammunition backed by knowledgeable product support, dependable order handling, and a trusted selection for serious range use.
