Hornady 338 Cal 250gr InterLock SP-RP

Hornady 338 Cal 250gr InterLock SP-RP

The Hornady 338 Cal 250gr InterLock SP-RP is a rugged, high-performance bullet component engineered for hunters and handloaders who require deep penetration and consistent terminal behavior in powerful .338-caliber cartridges. With a diameter of .338 inches and weighing 250gr, this InterLock SP-RP bullet features Hornady’s signature mechanical bonding system, locking the core and jacket together to retain over 90% of the bullet’s weight upon impact. Designed for controlled expansion, the 338 Cal 250gr InterLock SP-RP excels in delivering reliable terminal results on large game.

This 338 Cal 250gr InterLock SP-RP uses a spire point design combined with a recessed boat tail (RP) base, enhancing aerodynamic efficiency and maintaining flight stability. With a G1 ballistic coefficient of approximately 0.385, it offers a flat trajectory and reduced wind deflection—essential for long-range engagements. These characteristics make the 338 Cal 250gr InterLock SP-RP well-suited for magnum-class cartridges like the .338 Winchester Magnum, .338-06, and .340 Weatherby Magnum, offering a combination of reach and stopping power.

Hornady engineers the 338 Cal 250gr InterLock SP-RP for optimal stabilization in barrels with twist rates between 1:9 and 1:11. The bullet’s consistent bearing surface, tip alignment, and ogive geometry allow handloaders to achieve precise seating depth and repeatable muzzle velocities. Whether used in bolt-action hunting rifles or other precision platforms, the 338 Cal 250gr InterLock SP-RP delivers the consistency needed for tight groupings and ethical field performance.

On game, the 338 Cal 250gr InterLock SP-RP provides reliable expansion and excellent penetration. At typical muzzle velocities ranging from 2,700 to 2,900 feet per second, it expands in a controlled fashion while resisting fragmentation, driving deeply through muscle and bone. This makes the 338 Cal 250gr InterLock SP-RP especially effective on elk, moose, bear, and other large-bodied game. The bonded core ensures bullet integrity through heavy tissue, resulting in clean pass-throughs or deep wound channels when recovery matters most.

Manufactured in Hornady’s Grand Island, Nebraska facility, each 338 Cal 250gr InterLock SP-RP bullet is subject to tight quality control for concentricity, weight consistency, and tip alignment. Sold as a bullet component only, it must be paired with appropriate brass, powder, and primers. For reloaders seeking dependable accuracy, flat-shooting trajectories, and lethal performance in .338-caliber loads, the Hornady 338 Cal 250gr InterLock SP-RP is a trusted, field-proven choice for hunting at medium to extended distances.

Overall, the Hornady 338 Cal 250gr InterLock SP-RP combines aerodynamic design, bonded-core strength, and predictable terminal performance. It remains a leading option for handloaders building high-impact, large-game loads using .338-caliber magnums. With consistent expansion, deep penetration, and long-range precision, the 338 Cal 250gr InterLock SP-RP delivers when it matters most.