Federal .357 Mag 170gr Hammer Down Ammunition

Clear Product Overview

Federal Hammer Down .357 Magnum 170 Grain Bonded Soft Point is an industry-first hunting round co-developed by Federal Ammunition and Henry Repeating Arms. Engineered specifically to maximize cycling, terminal performance, and ballistic efficiency in tubular magazine lever-action rifles as well as revolvers, Hammer Down represents the gold standard for lever-gun hunting loads.

First, Federal Hammer Down features a custom modified bullet geometry with a Chamfered Front Edge on the cartridge rim. Consequently, hunters experience silky-smooth, jam-free side-gate loading and flawless feeding out of tubular lever-action rifle magazines. In addition, its heavy 170-grain bonded soft point projectile fuses the lead core to the copper jacket. As a result, it provides exceptional weight retention, controlled expansion, and deep tissue penetration through heavy bone and thick hide on big game like deer, black bear, and wild hogs. Furthermore, the propellant geometry is optimized specifically for longer rifle barrel lengths while maintaining safe pressures in revolvers. Therefore, it delivers higher muzzle velocities, flat trajectories, clean barrel combustion, and decisive knockdown power on target.

Relevant Specifications

• Brand: Federal Premium Ammunition / Henry Repeating Arms

• Product Line: Hammer Down Series

• Caliber: .357 Magnum / .357 Rem Mag

• Bullet Weight: 170 Grain

• Bullet Style: Bonded Soft Point (SP) with Chamfered Rim

• Muzzle Velocity: ~1,610 FPS (Feet Per Second out of 16-inch lever rifle barrels)

• Muzzle Energy: ~980 ft-lbs (Foot-Pounds)

• Casing Type: Nickel-Plated Brass Case (Boxer-Primed, Non-Corrosive)

• Primary Application: Lever-Action Hunting, Handgun Hunting, Deer/Hog/Bear Protection

• Packaging: 20 Rounds per Box

• Country of Origin: USA

Real-World Use Information

Lever-gun hunters select Federal .357 Mag Hammer Down 170gr because standard handgun-designed .357 Magnum rounds often fail to expand predictably or feed smoothly at higher rifle velocities. Consequently, hunters operating lever rifles like the Henry Big Boy, Marlin 1894, or Winchester 1892 obtain seamless loading side-gate operation and matchless downrange terminal disruption.

Additionally, the heavy 170-grain bonded core resists jacket-core separation even when impacting game at close rifle ranges. Therefore, big-game hunters gain deep straight-line penetration through tough shoulder bone and dense vital tissue, ensuring rapid terminal harvests with minimal meat damage.

Compatibility & Requirements

• Firearm Compatibility: Chambered for all standard SAAMI-spec .357 Magnum lever-action rifles, single-shot carbines, and double-action/single-action revolvers.

• Usage Restrictions: Intended for medium-to-large game hunting, hog control, and woods protection; not intended for indoor target range plinking.

• Storage: Store ammunition in its original box within a dry, room-temperature environment or sealed ammo container for maximum shelf storage life.

Pros & Limitations

Pros:

• Optimized Lever-Gun Feeding: Chamfered rim profile eliminates side-gate snagging and tubular magazine jam-ups.

• Bonded Core Technology: Retains maximum bullet weight for deep bone-breaking penetration on deer and wild hogs.

• Rifle-Engineered Velocities: Optimized powder charge extracts maximum speed and energy out of 16″ to 20″ rifle barrels.

• Corrosion-Resistant Nickel Packaging: Premium nickel-plated cases resist weather tarnishing and glide smoothly during cycling.

Limitations:

• Hunting Price Point: Specialized bonded hunting bullet technology carries a higher cost per round than budget target loads.

• Heavy Recoil Impulse: 170-grain heavy projectile creates firmer recoil in lightweight snub-nose revolvers compared to standard 125gr loads.

Frequently Asked Questions (FAQs)

Q: What makes Federal Hammer Down .357 Mag different from standard .357 Mag ammo?

A: Federal Hammer Down features a specially chamfered cartridge rim designed for smooth side-gate loading in lever-action rifles, along with a velocity-tuned powder charge and bonded soft point projectile optimized for carbine barrel lengths.

Q: Can I shoot Federal Hammer Down .357 Mag in my revolver?

A: Yes! Federal Hammer Down is fully SAAMI compliant and performs exceptionally well in standard .357 Magnum revolvers as well as lever-action rifles.

Q: Is Federal Hammer Down .357 Mag suitable for deer hunting?

A: Absolutely. The heavy 170-grain bonded soft point projectile provides deep penetration, controlled expansion, and massive kinetic energy transfer ideal for whitetail deer, wild hogs, and black bear.

Shipping & Delivery Information

• Ammunition Shipping: Ships ground via Limited Quantity hazmat compliance rules.

• Age Requirement: Must be 21 years of age or older to purchase handgun/rifle ammunition.

• State Restrictions: Check local state laws (e.g., CA, NY, IL, NJ, MA, CT) for FOID cards, background checks, or direct-to-FFL shipping requirements prior to purchase.

• Return Policy: All ammunition sales are final due to safety guidelines.