The Hornady InterLock line of .30 Cal .308" projectiles features traditional exposed lead tips, engineered for controlled expansion and reliable terminal performance. These 180gr SP projectiles incorporate the pioneering secant ogive design, recognised as one of the most ballistically efficient profiles. A key feature is the exclusive InterLock design, where a raised ring inside the jacket is embedded in the bullet's core, ensuring the core and jacket remain locked together during expansion to retain mass and energy.

• Inner Grooves: Strategically weaken the upper section of the jacket, ensuring consistent, controlled expansion, even at long range.
• Tapered Jacket: Jacket thickness is precisely controlled for expansion across all velocities.
• One-Piece Core: Unlike two-piece divided cores, the InterLock® core remains intact, retaining more mass and energy for deep penetration and large, consistent wound channels, ensuring effective terminal performance for hunting.
• Cannelure: Provides accurate and consistent crimping, working in conjunction with the InterLock® ring to ensure the core and jacket remain securely locked during expansion.
• InterLock® Ring: The raised InterLock® ring is embedded directly into the bullet's core, ensuring the core and jacket are locked as one piece during expansion to retain maximum mass and energy.

Secant Ogive Design
Pioneered by Hornady® for use in hunting projectiles, this technology revolutionised ballistic engineering and is now applied across a range of bullets, from match to varmint shooting. The secant ogive is a geometrically developed design that creates the most ballistically efficient profile while retaining the optimum bearing surface. This combination of a slender point and increased bearing surface results in lower drag, enhanced stability, flatter trajectories, and exceptional accuracy for reloaders and hunters.