The Weatherby Select Plus .280 Ackley Improved 139gr Hammer Custom is a high-performance hunting load designed for technical hunters who demand extreme velocity and lead-free terminal performance. By pairing the high-efficiency .280 AI cartridge with a CNC-machined Hammer Custom bullet, Weatherby has created a round that offers hand-loaded precision in a factory offering. The .280 Ackley Improved is famous for providing 7mm Remington Magnum performance with less recoil and better brass efficiency. This specific load pushes the envelope of that performance, utilizing a lightweight, high-speed projectile optimized for flat trajectories.