The Hornady 6.5mm .264 129 gr SST® InterLock® is a component projectile engineered for handloaders targeting medium game and precision range applications. Built with a polymer Super Shock Tip (SST) seated atop a cup-and-core lead alloy bullet, it initiates immediate expansion upon impact to create a wide wound channel while transferring kinetic energy into the target. Aerodynamically configured with a secant ogive and a boattail base, this projectile achieves a G1 ballistic coefficient of 0.485 to maintain velocity and provide flat trajectories across standard hunting distances. An internal mechanical InterLock ring works alongside a mid-body cannelure to lock the jacket and core together, controlling mushrooming and preventing jacket separation.

• Polymer Super Shock Tip: Functions as a wedge upon terminal impact, driving into the lead core to produce rapid expansion and extensive energy transfer.
• InterLock Ring and Cannelure: Mechanically bonds the jacket to the antimony-lead core to preserve weight during expansion, while offering a uniform groove for secure handload crimping.
• Secant Ogive Profile: Delivers low aerodynamic drag and a flat trajectory when paired with the boattail base.
• Standard Medium Game Performance: Rated specifically for game animals weighing between 50 and 300 lbs (approximately 23 to 136 kg).

Specifications

• Calibre / Bullet Diameter: 6.5mm / .264 inches
• Bullet Weight: 129 grains (approx. 8.36 grams)
• Ballistic Coefficient (G1): 0.485
• Sectional Density: 0.264
• Bullet Type: SST (Super Shock Tip) with Boattail (BT)
• Cartridge Compatibility: 6.5 Creedmoor, 6.5x55 Swedish, .260 Remington, 6.5 PRC, and other .264-calibre chambers
• Box Quantity: 100 projectiles

Who is the Hornady .264 6.5mm 129 Grain SST InterLock Bullets 100 Pack for?

• Medium game hunters — Requiring rapid terminal expansion and high shock delivery on species between 50 and 300 lbs (such as fallow deer, pigs, and goats), using a 129-grain .264-calibre bullet that balances velocity with deep wound cavitation.
• 6.5mm handloaders — Seeking a high-efficiency hunting bullet for platforms like 6.5 Creedmoor or 6.5x55 Swedish, utilizing a 0.485 G1 ballistic coefficient to maintain velocity and buck wind over medium field distances across a 100-projectile reloading batch.

Less suitable for: Thick-skinned, heavy-boned game weighing over 300 lbs (such as large sambar or scrub bulls) where rapid-expanding cup-and-core projectiles risk early fragmentation; monolithic copper projectiles or heavy bonded bullets are better suited to guarantee deep bone penetration. Additionally, this design is less optimal for extreme long-range target shooting beyond standard medium hunting ranges, where high-BC heavy match projectiles provide reduced wind drift.