HORNADY 2552 INTERLOCK 25 CAL .257 117 GRAIN BOAT TAIL SPIRE POINT 100 CNT

The Hornady InterLock BTSP 25 Cal .257 diameter 117 grain (2552) is a time-proven cup and core hunting bullet built for reloaders who want a dependable 25 caliber boattail spire point hunting bullet for medium game that delivers controlled expansion, deep penetration, and reliable terminal performance across the full family of popular 25 caliber hunting cartridges.

Key Features

• Manufacturer Part Number: 2552
• Caliber: 25 Cal (.257 diameter)
• Bullet Weight: 117 grain
• Bullet Type: InterLock Boat Tail Spire Point, BTSP
• G1 Ballistic Coefficient: .391
• Sectional Density: .253
• 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
• 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 the expansion process to retain mass and momentum and prevent the core-jacket separation that limits penetration on medium game at any range.
• One-piece lead core eliminates the performance inconsistencies of two-piece divided core designs, delivering uniform density and mass distribution that produces consistent expansion and deep, straight-line wound channels on every impact.
• Strategically placed interior grooves weaken the upper jacket section in a controlled pattern, ensuring consistent, repeatable expansion across the full velocity range from close-range shots to long-range field distances.
• Precisely tapered jacket controls expansion at high velocity while still promoting reliable upset at lower impact velocities, making this bullet a dependable performer across a broad family of 25 caliber cartridges.
• Boattail base reduces base drag, improves aerodynamic efficiency, and raises the ballistic coefficient, delivering a flatter trajectory and better retained velocity at extended hunting distances compared to flat base designs.
• Cannelure provides a firm, accurate crimp location and works in combination with the InterLock ring to further secure core-jacket integrity throughout the terminal phase.

Practical Benefits

• The 117 grain weight is the sweet spot for 25 caliber hunting cartridges, giving you a bullet that balances velocity, flat trajectory, and terminal momentum for clean, ethical performance on whitetail deer, mule deer, pronghorn, and similar medium game at distances from close range to well past 300 yards.
• The InterLock construction keeps core and jacket together when the bullet encounters shoulder bone and heavy muscle, giving you the full energy transfer and penetration that puts game down cleanly rather than leaving a spent jacket and a deflected core.
• Compatible with any cartridge using a .257 diameter projectile, including 25-06 Remington, 257 Roberts, 257 Weatherby Magnum, and 250 Savage, making this a highly versatile hunting component across the full 25 caliber family.
• The tapered jacket and interior groove design work together across a wide velocity window, so this bullet performs whether you are loading a mild 257 Roberts for close-cover hunting or a hard-driving 25-06 Remington for open-country shots without needing a separate component for each platform.
• For the reloader who values a proven traditional design, your load built around the Hornady InterLock BTSP (2552) delivers the flat trajectory, controlled expansion, and reliable penetration that hunters have trusted for decades on North American medium game.

The Hornady InterLock BTSP (2552) 25 Cal .257 diameter 117 grain is a practical choice for the experienced reloader and medium game hunter who wants a dependable, traditionally designed boattail hunting bullet that shoots flat, expands consistently, and holds together when it matters most in the field.