the 280 AI set out to improve the .280 Rem by steeping the shoulder to 40 degrees to increase powder capacity. Weatherby is known for ballistics and velocity.
- Caliber : 280 Ackley Improved
- Bullet Weight : 139 gr
- Muzzle Energy : 2871 ft lbs
- Muzzle Velocity : 3050 fps
- Rounds Per Box : 20
- Boxes Per Case : 10