Description
Federal Tactical HST .357 SIG 125 Grain Jacketed Hollow Point (JHP) Ammo
Elite duty-grade law enforcement ammunition engineered for exceptional barrier penetration, maximum weight retention, and massive terminal expansion. Federal Law Enforcement Tactical HST 125gr JHP combines corrosion-resistant nickel-plated brass cases, non-corrosive Boxer primers, and pre-skived hollow point geometry in a 50-round LE box.
Product Overview
Federal Law Enforcement Tactical HST .357 SIG 125 grain JHP ammunition (Part #P357SHST1) represents the pinnacle of law enforcement and personal defense engineering. Purpose-built to excel in strict FBI protocol testing, the HST projectile delivers uniform expansion and penetration through tough barriers like heavy clothing, auto glass, plywood, and sheet metal without plugging or separation.
Featuring Federal’s patented HST pre-skived hollow point design, the 125-grain bullet expands into six distinct petals to deliver maximum hydrostatic energy transfer. Launching at a muzzle velocity of 1,360 fps with 513 ft-lbs of energy out of a 4-inch test barrel, it maximizes the high-velocity performance of the bottlenecked .357 SIG cartridge. Loaded in premium nickel-plated reloadable brass cases with sealed Boxer primers, each 50-round LE box provides absolute cycling consistency under high-stress duty conditions.
Technical Specifications
| Brand / Manufacturer | Federal Premium Law Enforcement |
| Manufacturer Part # | P357SHST1 |
| Caliber | .357 SIG |
| Bullet Weight | 125 Grain |
| Bullet Type | Tactical® HST® Jacketed Hollow Point (JHP) |
| Muzzle Velocity | 1,360 fps |
| Muzzle Energy | 513 ft-lbs |
| Ballistic Coefficient (G1) | 0.150 |
| Casing Material | Nickel-Plated Brass |
| Primer Type | Boxer, Non-Corrosive |
| Primary Use | Law Enforcement, Duty Use, Personal Defense, Home Protection |
| Rounds per Box | 50 |
Ballistic Performance Data
| Distance | Velocity (fps) | Energy (ft-lbs) |
|---|---|---|
| Muzzle | 1,360 | 513 |
| 25 Yards | 1,275 | 451 |
| 50 Yards | 1,200 | 399 |
Factory specifications measured using a 4-inch test barrel. Velocities and energy values will vary based on handgun barrel length and atmospheric conditions.
Key Benefits
- Patented HST Hollow Cavity: Pre-skived bullet design ensures consistent six-petal expansion without clogging or premature fragmenting.
- Nickel-Plated Cases: Delivers ultra-smooth feeding in bottlenecked .357 SIG chambers and resists corrosion caused by moisture or sweat during carry.
- Near-100% Weight Retention: Engineered to hold structural integrity through barriers for optimal penetration in defense scenarios.
- Law Enforcement 50-Round Packaging: Packed in 50-round police duty boxes, providing greater value compared to 20-round retail packs.
Compatibility & Usage Notes
This ammunition is designed for handguns chambered in .357 SIG in sound operational condition. It feeds reliably in full-size duty pistols and compact carry sidearms such as the SIG Sauer P229/P226, Glock 31/32/33, and Smith & Wesson M&P357. Always check caliber markings on your firearm prior to loading. Store ammunition in a cool, dry place away from children and unauthorized individuals.
Frequently Asked Questions
What is the difference between Federal LE HST (P357SHST1) and Personal Defense HST (P357SHST1S)?
The loaded projectile, powder, and ballistics are identical. The LE version (P357SHST1) is packaged in a 50-round duty box, while the commercial retail version comes in a 20-round box.
Are Federal Tactical HST .357 SIG cases reloadable?
Yes. The cases are high-quality nickel-plated brass with non-corrosive Boxer primers.
Can .357 SIG ammo be fired in a .357 Magnum revolver?
No. The .357 SIG is a rimless, bottlenecked semi-automatic pistol cartridge and is completely incompatible with .357 Magnum revolvers.





