The Hornady Custom .357 Magnum 158-grain eXtreme Terminal Performance (XTP) Jacketed Hollow Point 25-round box is a multi-purpose centerfire revolver cartridge engineered specifically for personal defense, backcountry carry, and medium game hunting. A primary friction point when selecting .357 Magnum ammunition across varied barrel lengths is inconsistent hollow point behavior—where bullets either over-fragment from long barrels or fail to expand from short revolver barrels. Hornady completely resolves this performance limitation by tuning the 158-grain XTP projectile to expand predictably across a broad velocity window, ensuring reliable terminal performance whether fired from compact carry revolvers or full-length lever-action carbines.
The technical advantage centers on precise jacket engineering and mechanical core retention to optimize penetration depth and frontal expansion. Launching its 158-grain XTP payload at a proven muzzle velocity of 1,250 FPS, this load balances deep vital penetration with high kinetic energy transfer. Mechanically, the drawn copper jacket features strategically placed directional serrations around the hollow point cavity to initiate uniform, multi-petal expansion upon tissue impact. Additionally, an integrated heavy jacket cannelure mechanically locks the lead core to the outer jacket under severe impact stress, eliminating jacket-core separation and preserving structural mass through intermediate barriers.
Slinging its 158-grain XTP JHP bullet at 1,250 FPS, this classic .357 Magnum load delivers exceptional versatility across modern revolvers, single-shot handguns, and lever-action rifles. Assembled in premium reloadable brass cases fitted with sensitive, non-corrosive Boxer primers and clean-burning propellants, it maintains stable ignition curves and low muzzle flash. The smooth, precision-drawn brass case mouth ensures slick cylinder chambering and positive, non-binding extraction during rapid reloading cycles in critical field situations.
Key Benefits
- Directionally Serrated XTP Hollow Point: Initiates uniform, controlled expansion across both short revolver barrels and long carbine lengths.
- Interlocking Heavy Cannelure: Mechanically binds the lead core to the copper jacket to prevent separation and preserve mass for penetration.
- Broad Velocity Performance Window: Engineered to perform reliably without over-fragmenting at high speeds or failing to open at lower velocities.
- Select Factory Brass Casings: Precision-drawn reloadable brass provides smooth cylinder loading and effortless mechanical extraction.
Technical Specification
- Ballistics: .357 Magnum | 1,250 FPS Muzzle Velocity | Personal Defense & Medium Game Hunting Profile
- Projectile: 158 Grain | eXtreme Terminal Performance (XTP) Jacketed Hollow Point (JHP) | Directional Jacket Serrations | Heavy Cannelure
- Case/Primer: Premium Reloadable Virgin Brass Case | All-Weather Non-Corrosive Boxer Primed | Clean-Burning Propellant
- Logistics: 25 Rounds Per Box | Hornady Custom Series
- Dimensions: .357 Mag Geometry | Revolver & Lever-Action Carbine Configuration | SKU: 90562
- Application: Personal Defense, Backcountry Carry, Whitetail Deer Hunting, Medium Game, and Target Practice
- Standards: SAAMI Compliant | XTP Terminal Performance Benchmarks
When shot placement and terminal consistency matter, this load provides a balanced solution across defensive and field applications. SMKW delivers verified, factory-loaded ammunition with consistent lot performance you can rely on.
