Federal Hammer Down Rifle Ammunition .357 Mag. 170 gr SP 1610 fps 20/ct
$29.54
Federal Hammer Down .357 Mag Rifle Ammunition – 170gr SP, 1610fps, 20/ct. Optimized for hunting rifles with the industry’s only ammunition designed to meet optimal cycling and performance standards. Velocity is tailored to deliver superior ballistics and terminal penetration.
Out of stock
Make your lever gun run like never before with the industry's only ammunition truly designed for optimal cycling and overall performance from the time-tested rifle platform. Velocities of Federal Premium® HammerDown™ loads are customized to produce superior ballistics and terminal performance through lever-action barrel lengths. The construction of the molecularly bonded soft point bullets has also been adjusted for the best accuracy and expansion at those velocities. The geometry of each round's case bullet and cartridge ensures flawless cycling through tubular magazine and typical lever-action feeding systems.
Features:
- Specifically engineered for lever guns
- Functions flawlessly in side gate loading and tubular magazines
- Modified chamfered case for easier feeding
- Bullets optimized for better terminal performance out of lever-action rifles
- Designed in partnership with Henry Repeating Arms
- Bullets provide best-in-class expansion and weight retention on impact
- Increased velocities and performance in pistol cartridges
- Nickel-plated cases
| Weight | 0.810 lbs |
|---|---|
| Dimensions | 5.500 × 1.800 × 1.350 in |
| Manufacturer | Federal Cartridge Co. |
| Caliber | .357 Mag |
| Bullet Weight | 170 gr |
| Velocity | 1610 fps |
| Rounds Per Box | 20 |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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