Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
For white-tail hunters running smooth bore .410 shotguns in tight timber, the Federal Power-Shok 410 Bore rifled slug delivers a practical big-game option at distances inside 75 yards. This load launches a 1/4-ounce hollow point slug at 1775 fps, producing 762 ft-lbs of muzzle energy — sufficient terminal performance for deer-sized game when shot placement is precise. Federal’s TruBall rifled slug is a foster-style projectile featuring a plastic ball between the wad and slug base that centers the slug during bore transit, stabilizing flight and improving downrange accuracy in smooth bore barrels. The hollow point nose expands on impact. Federal manufactures this ammunition in the United States using non-corrosive Boxer primers in reloadable hulls with roll crimps. Each box contains five 2-1/2″ shells suitable for rifled or smooth bore barrels, including rifled choke tubes.
Performance at a Glance
Federal engineers the Power-Shok line for hunters prioritizing reliability and consistent terminal performance over high round counts. The 1/4-ounce slug weight sits at the lighter end of the .410 slug spectrum, trading raw momentum for flatter trajectory and reduced recoil in lightweight break-action and pump shotguns. The 1775 fps velocity rating reflects performance from a 26″ test barrel — expect 50-75 fps less from shorter field barrels. The TruBall system functions by isolating the slug from direct wad contact, reducing bore friction and allowing the slug’s rifling grooves to engage barrel rifling or stabilize through aerodynamic spin in smooth bores. This design produces tighter groups than traditional foster slugs at 50 yards when fired from quality barrels with consistent choke constriction. The hollow point cavity initiates expansion upon striking soft tissue, though at .410 velocities expansion may be modest compared to larger-bore slugs.
| Spec | Value |
|---|---|
| Gauge | 410 Bore |
| Shell length | 2-1/2″ |
| Shot/slug type | Hollow Point Rifled Slug (TruBall) |
| Slug weight | 1/4 Ounce |
| Muzzle velocity | 1775 fps |
| Muzzle energy | 762 ft-lbs |
| Barrel type | Rifled or Smooth Bore |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Crimp | Roll |
| Rounds/box | 5 |
| Intended use | Big Game |
| Manufacturer | Federal |
| Country of origin | United States |
The Power-Shok line sits in Federal’s hunting ammunition catalog alongside Premium and Vital-Shok offerings, representing the entry-level price tier without sacrificing core terminal performance. For additional Federal 410 ammo options including buckshot and target loads, review our category selection.
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 universal firearms safety rules: treat every firearm as loaded, never point at anything you are not willing to destroy, keep your finger off the trigger until ready to fire, know your target and what lies beyond it.
- Verify that your shotgun’s chamber is rated for 2-1/2″ shells before loading — consult your owner’s manual or barrel markings.
- 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 and before eating or smoking. Avoid firing in poorly ventilated indoor ranges.
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