HORNADY 2740 INTERLOCK 270 CAL .277 150 GRAIN SPIRE POINT 100 CNT

The Hornady InterLock SP 270 Cal .277 diameter 150 grain (2740) is a time-proven cup and core hunting bullet built for reloaders who want a dependable 270 caliber spire point hunting bullet for medium and large game that delivers controlled expansion, deep penetration, and reliable terminal performance across the full family of 270 caliber hunting cartridges.

Key Features

• Manufacturer Part Number: 2740
• Caliber: 270 Cal (.277 diameter)
• Bullet Weight: 150 grain
• Bullet Type: InterLock Spire Point, SP
• G1 Ballistic Coefficient: .462
• Sectional Density: .279
• Quantity: 100 count per box
• Bullet Construction: Jacketed one-piece lead core with InterLock ring, copper jacket
• Game Application: Medium game 50 to 300 lbs, Large game 300 to 1,500 lbs
• Lead Free: No

Special Features

• InterLock ring is a raised band embedded directly into the bullet core, mechanically locking the jacket and core together throughout expansion to retain mass, momentum, and energy for deep penetration on medium and large game.
• One-piece lead core delivers uniform density and mass distribution that produces consistent expansion and straight-line wound channels, eliminating the inconsistencies of two-piece divided core designs.
• Strategically placed interior grooves weaken the upper jacket section in a controlled pattern, ensuring repeatable expansion across the full velocity range from close range to extended field distances.
• Precisely tapered jacket controls expansion at high velocity while promoting reliable upset at lower impact velocities, making this bullet dependable across the full family of 270 caliber hunting platforms.
• Secant ogive spire point profile delivers lower drag, improved stability, flatter trajectories, and greater accuracy compared to traditional round nose hunting bullet designs of the same caliber and weight.
• Cannelure provides a firm crimp location and works in tandem with the InterLock ring to further secure core-jacket integrity throughout the terminal phase.

Practical Benefits

• The 150 grain weight adds sectional density and momentum over lighter 270 caliber options, making it the better choice when hunting elk, heavy mule deer, and black bear where driving through bone and thick muscle matters.
• Compatible with 270 Winchester, 270 WSM, and 270 Weatherby Magnum, making the InterLock SP (2740) a versatile component across the full 270 caliber family without needing a separate bullet for each platform.
• The tapered jacket and interior groove design work together across a wide velocity window, so this bullet expands reliably whether you are loading a mild 270 Winchester or a hard-driving 270 Weatherby Magnum.
• For the reloader who values a proven traditional design, your load built around the Hornady InterLock SP (2740) delivers the controlled expansion and deep penetration that 270 caliber hunters have depended on for decades.

The Hornady InterLock SP (2740) 270 Cal .277 diameter 150 grain is a dependable option for the experienced reloader and big game hunter who wants a traditionally designed cup and core hunting bullet that expands consistently and holds together when it matters most in the field.