DoubleTap Rifle Ammunition Features DoubleTap Ammunition built this 257 Roberts +P load around the 120 grain Nosler Partition a bullet known for its dual-core construction that delivers controlled expansion in the front section while the rear core retains weight for deep penetration. The +P pressure rating pushes velocity beyond standard 257 Roberts loads giving hunters a flatter trajectory and more delivered energy at the target. This combination makes the load well suited for medium game hunting where both expansion and penetration matter. DoubleTap is known for loading ammunition to maximize the performance envelope of each cartridge it offers. Each box holds 20 rounds of brass-cased ammunition giving shooters a practical quantity for sighting in a rifle or heading out on a hunt. The Nosler Partition bullet has a long track record of reliable performance across a wide range of game species making this load a trusted choice for hunters who demand consistency. DoubleTap s attention to load development means shooters can expect dependable function and accuracy out of this 257 Roberts +P round. For hunters running a 257 Roberts rifle this load offers a proven step up in downrange performance. DoubleTap Rifle Ammunition Specifications Manufacturer: DoubleTap Ammunition Caliber: 257 Roberts +P Bullet Weight: 120 gr Bullet Type: Nosler Partition Rounds Per Box: 20 Available At: GrabAGun