HRNDY 12GA 2.75″ 300GR SLUG MFX5/100

Description

The Hornady Superformance MonoFlex sabot slug is built for deer hunters who need consistent, hard-hitting performance from a rifled-bore shotgun at ranges where a traditional foster slug runs out of steam. The MonoFlex bullet is a one-piece copper alloy construction, which matters because there is no lead core to separate from a jacket under impact — the slug stays together and drives deep while the flex tip initiates reliable expansion even at the lower end of the velocity range, where a hollow point can sometimes fail to open.

The sabot design is what allows a .50-caliber slug to be fired through a 12-gauge rifled bore. The plastic sabot engages the rifling to impart spin, then peels away after the muzzle, leaving the slug in stable flight. This is a fundamentally different accuracy mechanism than a rifled foster slug, and it requires a fully rifled barrel — using this load through a smoothbore or an improved-cylinder choke tube defeats the entire purpose of the sabot and will produce poor patterns. A rifled choke tube in a smoothbore is a workable substitute, though a dedicated rifled barrel will generally produce tighter groups.

Hornady loads this round under the Superformance designation, which reflects an elevated velocity achieved through propellant formulation rather than increased pressure — the result is a meaningful step up in retained energy downrange compared to standard slug loads at the same bullet weight. At 300 grains, the slug carries enough sectional density to penetrate adequately on large whitetail and similar game. Five rounds per box is standard for sabot slugs at this price point, consistent with how most hunters treat premium slug ammunition: zeroed carefully, shot deliberately, and not burned through at the range in volume.