The Hornady InterLock line of projectiles features traditional exposed lead tips, engineered for controlled expansion and hard-hitting terminal performance. Many of these projectiles incorporate the pioneering secant ogive design, recognised as one of the most ballistically efficient profiles ever developed. The exclusive InterLock design includes a raised ring inside the jacket, embedded in the bullet's core, which ensures 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 at all velocities.
• One-Piece Core: Unlike two-piece divided cores, the InterLock® core does not separate. It retains more mass and energy for deep penetration and large, consistent wound channels, ensuring effective terminal performance for hunting.
• Cannelure: Provides accurate and consistent crimping, and works in conjunction with the InterLock® ring to ensure the core and jacket remain locked during expansion.
• InterLock® Ring: The raised InterLock® ring is embedded in the bullet's core, ensuring the core and jacket are locked in one piece during expansion to retain mass and energy.

Pioneered by Hornady® for use in hunting bullets, this technology broke new ground in ballistic engineering and is now utilised in projectiles for everything from match shooting to varmint hunting. The secant ogive is a geometrically developed design that creates the most ballistically efficient profile, while retaining the optimum bearing surface. The combination of the slender point and increased bearing surface results in lower drag, increased stability, flatter trajectories, and amazing accuracy.