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/Gauge | .280 Ackley Improved |
|---|---|
| Cost per Round | 5.56 |
| Grains | 139 GRAINS |
| Length | 5.9500 |
| Manufacturer | Weatherby |
| Manufacturer Part Number | M280A139HCB |
| Units per Box | 20 |
| UPC | 747115452675 |
