The .280 Ackley Improved cartridge is a popular choice among long-range shooters and hunters seeking enhanced ballistic performance. It is a modification of the .280 Remington, featuring a steeper shoulder angle and a 40-degree shoulder, resulting in increased case capacity and higher velocities. This translates to flatter trajectories, reduced wind drift, and increased energy retention at longer ranges. Typically chambered in bolt-action rifles, this cartridge excels with bullets ranging from 140 to 175 grains, making it suitable for a variety of game animals.
Since its development, the .280 Ackley Improved has gained a dedicated following due to its inherent accuracy and effectiveness. Compared to its parent cartridge, the increased powder capacity allows for a significant velocity increase, often exceeding 200 feet per second with comparable bullet weights. This enhancement makes it a compelling option for those seeking to extend their effective shooting range, particularly in open country or mountainous terrain. The cartridge’s performance characteristics have contributed to its popularity for hunting medium to large game, including deer, elk, and moose.