Nosler ASP .357 Magnum 125gr JHP ammunition (brand part no. 40134) drives Nosler’s Assured Stopping Power hollow point to a full 1450 fps, giving revolver and semi-auto .357 Magnum shooters serious energy behind a bullet built to expand on demand. The skived jacket is engineered for controlled expansion at the higher velocities a full-power .357 Magnum load generates, so terminal performance stays predictable instead of over-penetrating or fragmenting early. Nosler loads the round in its own headstamped brass, carrying over the same quality control the company applies to its Match Grade rifle ammunition. Duty and defensive shooters who want magnum-level stopping power with match-level consistency load this .357 Magnum ammunition.

Key Specifications

• The caliber is .357 Magnum, delivering full-power performance in both revolvers and semi-auto conversions.
• The bullet weighs 125 grains, a classic weight matched to .357 Magnum velocity for balanced expansion and penetration.
• The bullet is a Jacketed Hollow Point (JHP), built to expand under the pressure of full magnum velocity.
• Nosler skives the bullet jacket, engineering controlled expansion that holds up at magnum-level impact speeds instead of fragmenting early.
• Muzzle velocity reaches 1450 fps, giving the load significant energy transfer at typical defensive distances.
• The jacket mouth is shaped for smooth, reliable feeding, cycling cleanly in revolvers and semi-auto .357 platforms alike.
• The cost works out to $1.03 per round, reasonable pricing for a full-power magnum defensive JHP.
• Each box holds 20 rounds, enough for a range session with rounds left for carry.
• The case is Nosler-headstamped brass, loaded with the same quality control as Nosler’s Match Grade line.
• This is a duty and defensive-grade load, built for law enforcement and civilian personal protection alike.

Frequently Asked Questions

How does 1450 fps compare to standard .357 Magnum loads? It is a full-power magnum velocity, giving substantial energy transfer beyond what many standard-pressure loads deliver.

Will the bullet hold together at that velocity? Yes, the skived jacket is engineered specifically for controlled expansion at magnum-level impact speeds rather than fragmenting.

Is this ammunition suited for duty use? Yes, the ASP line is built for law enforcement and defensive carriers who need reliable expansion and consistent accuracy.

Buy Nosler ASP .357 Magnum 125gr JHP Ammunition

Full-power .357 Magnum demands a bullet that can handle the velocity without falling apart, and the ASP line was built with exactly that pressure in mind. Add it to your handgun ammunition lineup from a name trusted for Nosler match-grade consistency. Order from our Lubbock, Texas gun shop and it ships fast to your door.