Hornady 45 Cal 245gr InterLock

Hornady 45 Cal 245gr InterLock

The Hornady 45 Cal 245gr InterLock is a high-performance bullet component crafted for precision handloaders and big-game hunters seeking dependable terminal performance in .45‑caliber rifles. With a .452‑inch diameter and a bullet weight of 245gr, this projectile employs Hornady’s proven InterLock bonding process, mechanically locking the lead core to the copper jacket. The result is exceptional structural integrity, typically retaining more than 90 percent of its weight upon impact—ensuring deep, controlled penetration through tough game tissue.

This 45 Cal 245gr InterLock features a spitzer boat‑tail profile designed to enhance external ballistics. The streamlined secant ogive and boattail base improve aerodynamic efficiency, helping to flatten trajectory and reduce wind drift. With a G1 ballistic coefficient estimated around 0.345 and a sectional density of approximately 0.235, this bullet maintains velocity and performance downrange, making it suitable for medium‑ and large‑game hunting situations even at extended ranges beyond typical brush distances.

Intended for use in cartridges such as the .45‑70 Government and modern .458‑caliber lever or bolt rifles, the 45 Cal 245gr InterLock performs best in barrels with twist rates between 1:16 and 1:18. The precision-manufactured bearing surface and uniform ogive enhance seating depth consistency, contributing to reliable accuracy and group retention. These characteristics make it well-suited to lever-action platforms with tubular magazines and rugged bolt-action rifles chambered in .45‑70 magnums.

During field applications, the 245gr InterLock exhibits predictable expansion behavior when fired at typical hunting velocities—2,100 to 2,400 fps from modern .45‑70 engines. The bonded-core encourages controlled mushroom formation while resisting jacket-core separation. Hunters report deep wound channels and retained bullet mass sufficient to reach vital zones even through heavy hide, bone, and thick muscle—an important trait when pursuing bears, moose, elk, or large feral hogs.

The Hornady 45 Cal 245gr InterLock is manufactured in Grand Island, Nebraska, under strict adherence to Hornady’s quality control standards. The bullets are sold as components only, requiring handloaders to select appropriate brass, powder, and primers to match their specific cartridge needs. Every projectile is crafted to tight tolerances for straightness, weight consistency, and tip alignment, supporting accuracy potential and reliability in field conditions.

Overall, the Hornady 45 Cal 245gr InterLock bullet component combines bonded-core durability, aerodynamic efficiency, and consistent expansion control. This makes it a top-tier choice for handloaders developing ammunition in .45‑70 Government or comparable heavy-hunting calibers. The bullet excels in delivering deep penetration, reliable expansion, and predictable terminal behavior on tough North American game.