Magtech Sport Shooting .357 Magnum 158 Grain Jacketed Soft Point (MPN: 357A)
Revolver shooters and lever-action carbine marksmen looking for a classic, heavy-payload .357 Magnum cartridge face a common requirement: balancing authentic full-power magnum energy with controlled expansion and smooth feeding. Magtech developed their Sport Shooting 158-grain Jacketed Soft Point (JSP) load to solve this need. Engineered for hunting medium game, silhouetting steel targets, and conducting serious range practice, this traditional weight loading provides shooters with flat flight characteristics, deep penetration, and high kinetic energy transfer without causing heavy lead fouling in the barrel.
Every round in Magtech's Sport Shooting series is manufactured to strict dimensional tolerances. Featuring a heavy 158-grain jacketed soft point projectile, this bullet design combines a copper jacketed body with an exposed lead tip. This construction delivers controlled terminal expansion upon impact while preserving structural integrity for deep penetration through target tissue or heavy steel plates. Magtech pairs these projectiles with factory-fresh, heavy-walled reloadable brass cases, clean-burning propellants, and non-corrosive boxer primers for smooth cylinder rotation and consistent ignition under full magnum chamber pressures.
On the range and in the field, expect traditional 158-grain magnum ballistics—a authoritative push recoil impulse paired with steady downrange trajectory stability. Leaving the muzzle at approximately 1,230 FPS out of standard revolver barrels, this loading generates optimal pressure to ensure effortless cylinder extraction and positive feeding through tubular magazines in lever-action rifles. The high-grade drawn brass cases provide long reloading lifecycles, making this 50-round box an exceptional value for target scoring, field hunting, and high-volume volume shooting.
Armorer Bench Notes & Technical Maintenance Guidance
Shipping Restrictions: Ammunition sales are strictly regulated. Check all state and local laws prior to ordering. Cannot ship to PO Boxes, APO/FPO addresses, or internationally. Must ship via ORM-D / Hazardous Ground transport.
Armorer Tip: Heavy 158gr .357 Magnum loads place high mechanical stress on cylinder crane alignments and forcing cones. Periodically inspect your revolver's cylinder gap and top strap for flame cutting or carbon build-up after extended firing sessions. When cycling jacketed soft-point rounds through lever-action carbines, verify that your loading gate and elevator feed smoothly without catching on the exposed lead nose.
Key Features
- Controlled Terminal Expansion: Exposed lead soft point with copper jacket delivers controlled mushrooming and deep penetration.
- Heavy-for-Caliber Payload: 158-grain weight delivers high momentum and kinetic transfer for hunting and steel target knocking.
- Clean-Burning Propellants: Specially formulated powders keep action parts, cylinder throats, and receiver internals clean.
- Heavy-Duty Reloadable Brass: Precision-drawn brass cases ensure uniform wall thickness for extended reloading lifecycles.
- Non-Corrosive Primer Ignition: Quality boxer primers offer rapid, weather-reliable ignition in all field conditions.
Product Specifications
- Brand: Magtech Ammunition
- Product Line: Sport Shooting / Target & Range
- MPN: 357A
- UPC: 754908110018
- Caliber / Gauge: .357 Magnum (.357 Mag)
- Bullet Weight: 158 Grain
- Bullet Type: Jacketed Soft Point (JSP)
- Muzzle Velocity: ~1,230 FPS
- Muzzle Energy: ~531 ft-lbs
- Casing Material: Brass (Reloadable)
- Primer Type: Boxer (Non-Corrosive)
- Box Quantity: 50 Rounds per Box
- Case Quantity: 1,000 Rounds (20 Boxes)
