The Hornady InterLock 6.5mm (.264") 140 Grain Spire Point bullet is an unprimed, inert component projectile engineered for handloaders assembling hunting ammunition for medium to large game. Featuring a traditional flat base, exposed lead-alloy soft point, and a secant ogive profile, this projectile is designed to balance low aerodynamic drag with a generous bearing surface for consistent barrel engagement. Its internal mechanical InterLock ring anchors the lead core directly to the tapered copper jacket during terminal upset, preventing jacket-core separation to ensure deep wound penetration and high weight retention on game weighing between 23 kg and 680 kg.

Key Features

• InterLock Retention Ring: Features a raised internal jacket ring embedded directly into the lead-alloy core, mechanically locking the core and jacket together during terminal impact to minimize fragmentation.
• Controlled Terminal Expansion: Utilizes an exposed soft lead tip paired with engineered inner jacket grooves to initiate uniform, controlled mushrooming across a velocity window of 1,500 fps to 3,200 fps.
• Secant Ogive Geometry: Combines an aerodynamic profile with an extended bearing surface, delivering a G1 ballistic coefficient of 0.465 alongside stable in-flight trajectories.
• Broad Cartridge Compatibility: Designed for loading across common 6.5mm bore rifle cartridges, including 6.5 Creedmoor, 6.5x55mm Swedish Mauser, .260 Remington, 6.5 PRC, and .264 Winchester Magnum.

Specifications

• Calibre / Bullet Diameter: 6.5mm / .264 in
• Bullet Weight: 140 grains (approx. 9.07 grams)
• Bullet Style: Spire Point (SP) Flat Base with Cannelure
• Overall Length (OAL): Approximately 1.258 inches
• Ballistic Coefficient: 0.465 (G1)
• Sectional Density: 0.287
• Optimal Recommended Velocity Window: 1,500 fps to 3,200 fps
• Recommended Barrel Twist Rate: 1:8" to 1:9" or faster
• Packaging Quantity: 100 projectiles per box

Who is the Hornady InterLock 6.5mm 140 Grain Spire Point Bullet for?

• Handloaders reloading 6.5mm cartridges for medium-to-large deer hunting — relies on a high sectional density of 0.287 and a 140-grain weight to achieve deep penetration and terminal upset on fallow, red, chital, and sambar deer when fired from barrels with a 1:8" to 1:9" twist rate.
• Hunters targeting feral pigs and goats at distances up to 400 metres — leverages a 0.465 G1 ballistic coefficient and an optimal operating velocity envelope down to 1,500 fps to provide flat trajectories and reliable expansion on feral game inside standard 300 to 400-metre hunting ranges.

Less suitable for: Long-range shooting beyond 400 to 500 metres or impacts dropping below 1,500 fps, where a high-BC, polymer-tipped boat-tail hunting bullet is better suited to maintain velocity and reduce aerodynamic drift.