Federal Trophy Bonded Tip Component Bullet .277 140 Grain Rifle Bullet 50. The proven design stands apart from all other big game bullets combining bonded construction a bone-crushing solid copper shank boat-tail design and a high performance polymer tip that tightens groups at long range. Specifications for Federal Trophy Bonded Tip Component Bullet .277 140 Grain Rifle Bullet: Manufacturer: Federal Bullet Type: Boat Tail (BT) Caliber: .277 Wolverine Bullet Weight: 140 grain Projectile Caliber: .277 Caliber Bullet Quantity: 50 Bullet Features of Federal Trophy Bonded Tip Component Bullet .277 140 Grain Rifle Bullet High-performance polymer tip and boat-tail Flat trajectory and match-grade accuracy Robust bonding maximizes weight retention Solid shank for bone-crushing penetration Grooved shank minimizes fouling and improves accuracy Offered in bullet diameters and weights perfect for the most popular big game cartridges Package Contents: Federal Trophy Bonded Tip Component Bullet .277 140 Grain Rifle Bullet Federal PB277TT140: Trophy Bonded Tip Component Bullet .277 140 Grain Rifle Bullet 50