Caliber: 280 ACKLEY Improved Bullet Type: Jacketed Hollow Point Bullet Weight In GRAINS: 139 GRAINS Cartridges Per Box: 20 Boxes Per Case: 10 Reloadable: Y
Manufacturer: Weatherby
Model No: M280A139HCB
Weatherby is a well-known firearms and ammunition manufacturer.
280 Ackley: This refers to the caliber or cartridge type. The .280 Ackley Improved is a popular cartridge known for its performance in hunting. It is based on the .280 Remington cartridge but has been improved for better performance.
139gr: This indicates the weight of the bullet in grains. In this case, the bullet weighs 139 grains. The bullet weight can affect factors such as the trajectory and terminal ballistics of the round.
Caliber Dictionary
The Below Information Has Been Provided From Our Gun Caliber Dictionary And Is Meant For Informational Purposes Only. It Is Not Intended to Describe The Unique Specifications For This Ammunition.
The 280 Remington Ackley Improved (280 AI) is an "improved" or blown-out verions of the 280 Remington, meaning the chamber is enlarged so that cane body taper is remove, increasing powder capacity and thus increasing velocity. Just one of dozens of wildcat cartridges developed by Parker O. Acklely during his long career, it has progressed into factory chamberings. With its staight case and sharper shoulder the unbelted 280 AI is capable of velocity very close to the 7mm Remington Magnum, but retains the smaller case (and thus magazine capacity) of the 280 Remington. Like most "improved" cartridges it is safe to fire 280 Remington cartridges in a 280 AI chamber; there is some loss of velocity due to case expansion, but this is the normal process by which 280 AI cases are fire-formed for reloading. — Craig Boddington
