Hornady 284 Cal 7mm 154gr InterLock SP

Hornady 284 Cal 7mm 154gr InterLock SP

The Hornady 284 Cal 7mm 154gr InterLock SP is a precision-engineered bullet component intended for serious handloaders who demand reliable performance on medium to large game. The .284-inch diameter, 154-grain spire point design features Hornady’s InterLock mechanical bonding system, which locks the lead core to the copper jacket. This construction ensures controlled expansion with over 90% weight retention, providing deep penetration and uniform terminal performance across a wide range of velocities and impact conditions.

This bullet’s spire point profile is optimized for consistent accuracy, offering a sleek secant ogive that flattens trajectory and improves ballistic stability. With a G1 ballistic coefficient estimated around 0.425 and a sectional density of approximately 0.276, the Hornady 284 Cal 7mm 154gr InterLock SP delivers excellent aerodynamic performance. These characteristics make it ideal for cartridges such as the 7mm Remington Magnum, 7x64mm, and .284 Winchester, offering handloaders a potent combination of precision and terminal effectiveness at extended ranges.

The InterLock SP features a boat-tail base to enhance stability in flight and uniform seating in compatible cases. Standard twist rates between 1:9 and 1:10 are sufficient to stabilize this bullet in both bolt-action and modern semi-auto rifles. Consistency in bearing surface length, flat base, and tip alignment supports repeatable handloads that group tightly and fly predictably. Reloaders will find this component easy to use, compatible with common magnum-case powders and primers for optimal velocity and accuracy.

In field use, this bullet excels on game such as mule deer, elk, and antelope. At typical hunting velocities—2,800 to 2,900 fps—the InterLock SP reliably expands without fragmentation, producing controlled mushrooming and substantial wound channels. The bonded-core design prevents jacket-core separation, ensuring deep penetration on heavy-skinned or long-legged game. This makes it a reliable choice for ethical takedowns in varied terrain and shot distances, including longer-range shots where retained weight and expansion reliability are critical.

Manufactured in Grand Island, Nebraska, the Hornady 284 Cal 7mm 154gr InterLock SP is sold as bullet components only, intended for handloading into appropriate brass, powders, and primers. Hornady’s meticulous quality control ensures uniform ogive geometry, straightness, and weight consistency. Whether pursuing game in forested mountains or wide-open plains, this bullet provides the accurate trajectory, bonded-core durability, and consistent terminal performance needed for confident results in the field.

Overall, the Hornady 284 Cal 7mm 154gr InterLock SP delivers a compelling combination of spire point aerodynamic efficiency, bonded-core integrity, and real-world hunting effectiveness. It stands as a top-tier option for handloaders seeking accurate, powerful, and reliable bullet components for 7mm magnum-class cartridges.