The Hornady InterLock BTSP 270 Cal .277 diameter 140 grain (2735) is a time-proven cup and core hunting bullet built for reloaders who want a dependable 270 caliber boattail spire point hunting bullet for medium and large game that delivers controlled expansion and deep penetration across the full family of popular 270 caliber cartridges.
Key Features
- Manufacturer Part Number: 2735
- Caliber: 270 Cal (.277 diameter)
- Bullet Weight: 140 grain
- Bullet Type: InterLock Boat Tail Spire Point, BTSP
- G1 Ballistic Coefficient: .486
- Sectional Density: .261
- Quantity: 100 count per box
- Bullet Construction: Jacketed one-piece lead core with InterLock ring, copper jacket, cannelure
- 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.
- Boattail base reduces base drag, improves aerodynamic efficiency, and raises the ballistic coefficient for a flatter trajectory and better retained velocity at hunting distances compared to flat base designs.
- 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 140 grain weight steps up from the classic 130 grain to add sectional density and momentum, giving you a better choice for larger deer, black bear, and elk where deeper penetration through heavy bone and muscle matters.
- Compatible with 270 Winchester, 270 WSM, 270 Weatherby Magnum, and 6.8 Western, making the InterLock BTSP (2735) a versatile component across the full 270 caliber family without needing a separate bullet for each platform.
- The boattail base and .486 G1 BC give you a noticeably flatter trajectory than flat base alternatives, keeping holdover estimates manageable as distances stretch across open terrain.
- For the reloader who values a proven traditional design, your load built around the Hornady InterLock BTSP (2735) delivers the flat-shooting performance and reliable terminal results that 270 caliber hunters have depended on for decades.
The Hornady InterLock BTSP (2735) 270 Cal .277 diameter 140 grain is a solid fit for the experienced reloader and big game hunter who wants a dependable boattail hunting bullet that shoots flat, penetrates deep, and holds together when it matters most in the field.
| MANUFACTURER | HORNADY |
| BULLET CALIBER | 270 CALIBER |