Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The PPU Defense 357 Magnum 158 Grain Jacketed Hollow Point brings Serbian precision to a classic American defensive cartridge. Since 1928, Prvi Partizan has manufactured commercial and military ammunition to SAAMI specification — this 357 Magnum load pairs a 158-grain jacketed hollow point with Boxer-primed brass for consistent ignition and reliable feeding. At 1607 fps and 906 ft-lbs from a 4-inch barrel, the load sits in the middle of the .357 Magnum velocity spectrum — fast enough for expansion, controllable enough for rapid follow-up shots in a medium-frame revolver or lever-action carbine.
Load Profile
The 158-grain bullet uses a full-length copper jacket with a hollow cavity at the nose. On impact, the jacket controls expansion while the hollow point initiates petal formation — penetration depth runs 12-14 inches in calibrated gelatin, with expansion to roughly 0.55-0.60 inch depending on barrel length and intervening barriers. The brass case accepts standard large pistol primers and seats without case trimming through multiple reloading cycles. PPU runs every lot through internal ballistic testing to verify velocity, pressure, and function before shipping.
Specs at a Glance
| Spec | Value |
|---|---|
| Caliber | 357 Magnum |
| Bullet weight | 158 Grains |
| Bullet type | Jacketed Hollow Point |
| Muzzle velocity | 1607 Feet Per Second |
| Muzzle energy | 906 Foot Pounds |
| Rounds/box | 50 Round |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Intended use | Self Defense |
| Manufacturer | PPU |
The 158-grain load runs clean in K-frame and L-frame Smith & Wesson revolvers, Ruger GP100s, and Marlin 1894 carbines. Recoil is moderate — shooters familiar with full-power 38 Special +P will find the jump manageable. Browse our full 357 Magnum ammo selection for target and hunting loads.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle and shotgun ammunition, and at least 21 for handgun ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Observe the four rules of firearm safety at all times — treat every gun as loaded, never point at anything you’re not willing to destroy, keep your finger off the trigger until ready to fire, and know your target and what lies beyond it.
- Verify current state and local ammunition laws before purchase — some jurisdictions restrict hollow-point ammunition or impose magazine capacity limits that affect bulk purchases.
- This product contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling ammunition and components. Use adequate ventilation when shooting indoors.
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