Federal Power-Shok Rifled Slug (F127RS)

Federal Power-Shok F127RS is the standard against which other Foster slugs are judged. A Foster slug is a soft-lead, hollow-based projectile with a forward-weighted design that flies nose-first the way a shuttlecock does, which is what makes it accurate from a smoothbore barrel. The angled cuts cast into its sides are widely misunderstood: they do not spin the slug, they simply let it swage down to pass through a choke safely. This is the key fitment fact for slug shooters: Foster slugs are made for smoothbore barrels, the kind on most pump and tactical shotguns.

The F127RS drives a 1-ounce slug at 1,610 fps for 2,518 ft-lbs of muzzle energy, hollow-pointed for expansion. That is a substantial wallop, more than enough for whitetail deer and capable on larger game at moderate range. Practical accuracy holds out to roughly 100 yards from a smoothbore with rifle sights or a low-power optic; beyond that the slug's blunt profile sheds velocity and the trajectory drops off steeply.

For anyone running a smoothbore shotgun who needs a single-projectile option, for deer in shotgun-only zones, for dispatching large animals, or for maximum penetration, this is the default Foster slug. It is affordable, accurate enough for its role, and available everywhere.