Hornady InterLock projectiles represent a traditional line of bullets, engineered with exposed lead tips for controlled expansion and effective terminal performance in the field. Many of these projectiles incorporate the pioneering secant ogive design, recognised as one of the most ballistically efficient profiles ever developed for hunting and sport shooting.

A key feature is the exclusive InterLock® design, which includes a raised ring inside the jacket embedded in the bullet's core. This design ensures the core and jacket remain locked together during expansion, retaining mass and energy for deep penetration and consistent performance on game.

• 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® retains more mass and energy for deep penetration and large, consistent wound channels, contributing to effective and humane game harvesting.
• Cannelure: Provides accurate and consistent crimping and also works 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 and is now utilised in projectiles for everything from match shooting to varmint control.

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, increased stability, flatter trajectories, and exceptional accuracy for hunters and sport shooters.