Load data for .280 Ackley Improved + 140gr Nosler Partition
The most recommended powders for this combination are IMR 4831.
Based on SAAMI, the max. allowed case length is 2.525 in / 64.14 mm, the max. cartridge length is 3.330 in / 84.58 mm, and the max. allowed pressure is 65,000 PSI / 4,482 bar.
Based on SAAMI, the max. allowed case length is 2.525 in / 64.14 mm, the max. cartridge length is 3.330 in / 84.58 mm, and the max. allowed pressure is 65,000 PSI / 4,482 bar.
Load Specifications
ImperialMetric
Bullet:.284 | 140gr | Partition
Cartridge:.280 Ackley Improved load data
Case Length (L3):2.540" | 64.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.370" | 9.4 mm
Case Capacity:74 gow | 4.80 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (SAAMI):65,000 psi | 4,482 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:12.0
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Community Loads for .280 Ackley Improved + 140gr Nosler Partition
Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.
| Powder | Charge (gr) | C.O.L. | Barrel Length | Velocity (fps) | Pressure (psi) |
|---|---|---|---|---|---|
| 54.0 gr | 3.330" | 26.0" | 2867 fps | ••• | |
| 56.0 gr | 3.330" | 26.0" | 2957 fps | ••• | |
| 58.0 gr | 3.330" | 26.0" | 3046 fps | ••• | |
| ••• | 3.330" | 26.0" | 2925 fps | ••• | |
| ••• | 3.330" | 26.0" | 3017 fps | ••• | |
| ••• | 3.330" | 26.0" | 3109 fps | ••• | |
| ••• | 3.330" | 26.0" | 2872 fps | ••• | |
| ••• | 3.330" | 26.0" | 2967 fps | ••• | |
| ••• | 3.330" | 26.0" | 3064 fps | ••• | |
| ••• | 3.330" | 26.0" | 2979 fps | ••• | |
| ••• | 3.330" | 26.0" | 2787 fps | ••• | |
| ••• | 3.330" | 26.0" | 2891 fps | ••• | |
| ••• | 3.330" | 26.0" | 2978 fps | ••• | |
| ••• | 3.330" | 26.0" | 3065 fps | ••• | |
| ••• | 3.330" | 26.0" | 2956 fps | ••• | |
| ••• | 3.330" | 26.0" | 3053 fps | ••• | |
| ••• | 3.330" | 26.0" | 2896 fps | ••• | |
| ••• | 3.330" | 26.0" | 2983 fps | ••• | |
| ••• | 3.330" | 26.0" | 3068 fps | ••• | |
| ••• | 3.330" | 26.0" | 2878 fps | ••• | |
| ••• | 3.330" | 26.0" | 2980 fps | ••• | |
| ••• | 3.330" | 26.0" | 3078 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.