Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The Remington High Terminal Performance (HTP) 357 Magnum 180 grain semi-jacket hollow point delivers a defensive load optimized for controlled expansion and penetration. The 180 grain projectile sits at the heavier end of the 357 Magnum spectrum, trading some velocity for momentum retention through barriers. Semi-jacket hollow point construction allows the front cavity to initiate expansion on contact with soft tissue while the jacket base maintains weight retention during penetration. This is 357 Magnum defensive ammo engineered for revolver carry where reliability under stress defines the platform’s role.
Built for the Box
Remington applies waterproof sealant to both the primer pocket and case mouth. Moisture intrusion during everyday carry — sweat, rain, humidity cycling — can degrade primer compounds and powder charges over time. The sealant creates a physical barrier that extends ammunition shelf life in holsters, vehicle compartments, and range bags exposed to temperature swings and condensation. Boxer primers seat in reloadable brass cases, allowing spent hulls to return to service after initial firing. Non-corrosive propellants and primers eliminate the accelerated cleaning schedules required by surplus military ammunition, a practical consideration for defensive ammunition that may remain loaded for extended periods before replacement.
The Numbers
| Spec | Value |
|---|---|
| Caliber | 357 Magnum |
| Bullet weight | 180 grain |
| Bullet type | Semi-Jacket Hollow Point (SJHP) |
| Case | Reloadable brass |
| Primer | Boxer, waterproof sealed |
| Corrosive | No |
| Intended use | Self-defense, hunting |
| Manufacturer | Remington |
The 180 grain projectile delivers heavier momentum than 125 or 158 grain offerings in the 357 Magnum ammo category. Expect reduced muzzle velocity compared to lighter loads — a tradeoff that favors penetration depth in applications where barriers or angled shots are anticipated. Semi-jacket construction leaves the hollow point cavity exposed while the jacket wraps the bearing surface and base, a middle ground between full metal jacket training rounds and fragmenting designs that sacrifice penetration for rapid expansion.
Who It’s For
Revolvers chambered in 357 Magnum benefit from the cartridge’s dual-purpose design — shooters can train with 38 Special loads and carry 357 Magnum defensive ammunition without platform changes. The HTP line addresses the carry gap where moisture exposure and long dwell times between range rotations demand sealed ammunition. Hunters pursuing medium game within revolver effective range — hogs, deer at close quarters — gain a heavy-for-caliber option that maintains energy on impact. The 180 grain weight handles brush deflection better than faster, lighter projectiles that shed velocity rapidly after contact with intervening vegetation.
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.
- Follow the four rules of firearm safety at all times — treat every firearm as loaded, keep muzzle pointed in a safe direction, finger off trigger until ready to fire, know your target and what lies beyond.
- Verify current federal, state, and local laws before purchasing or possessing handgun ammunition — some jurisdictions impose additional age requirements, purchase limits, or registration mandates.
- This product contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm (Prop 65). Wash hands thoroughly after handling ammunition and spent casings. Maintain adequate ventilation when firing indoors.
Reviews
There are no reviews yet.