Load data for .280 Ackley Improved + 140gr Nosler Ballistic Tip Hunting
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
Cartridge:.280 Ackley Improved load data
Case Length (L3):2.540" | 64.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.465" | 11.8 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:1:11.0
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Community Loads for .280 Ackley Improved + 140gr Nosler Ballistic Tip Hunting
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) |
|---|---|---|---|---|---|
| 49.0 gr | 3.330" | 24.0" | 2776 fps | ••• | |
| 53.5 gr | 3.330" | 24.0" | 2954 fps | ••• | |
| 52.0 gr | 3.330" | 24.0" | 2757 fps | ••• | |
| ••• | 3.330" | 24.0" | 2779 fps | ••• | |
| ••• | 3.330" | 24.0" | 2981 fps | ••• | |
| ••• | 3.330" | 24.0" | 3041 fps | ••• | |
| ••• | 3.330" | 24.0" | 2874 fps | ••• | |
| ••• | 3.330" | 24.0" | 2749 fps | ••• | |
| ••• | 3.330" | 24.0" | 2936 fps | ••• | |
| ••• | 3.330" | 24.0" | 2782 fps | ••• | |
| ••• | 3.330" | 26.0" | 2890 fps | ••• | |
| ••• | 3.330" | 26.0" | 2952 fps | ••• | |
| ••• | 3.330" | 26.0" | 2902 fps | ••• | |
| ••• | 3.330" | 24.0" | 2610 fps | ••• | |
| ••• | 3.330" | 24.0" | 2815 fps | ••• | |
| ••• | 3.330" | 24.0" | 2767 fps | ••• | |
| ••• | 3.330" | 24.0" | 2921 fps | ••• | |
| ••• | 3.330" | 24.0" | 2751 fps | ••• | |
| ••• | 3.330" | 24.0" | 2930 fps | ••• | |
| ••• | 3.330" | 26.0" | 2817 fps | ••• | |
| ••• | 3.330" | 26.0" | 2914 fps | ••• | |
| ••• | 3.330" | 24.0" | 2716 fps | ••• | |
| ••• | 3.330" | 24.0" | 2867 fps | ••• | |
| ••• | 3.330" | 24.0" | 2779 fps | ••• | |
| ••• | 3.330" | 24.0" | 2665 fps | ••• | |
| ••• | 3.330" | 26.0" | 2812 fps | ••• | |
| ••• | 3.330" | 24.0" | 2820 fps | ••• | |
| ••• | 3.330" | 26.0" | 2902 fps | ••• | |
| ••• | 3.330" | 24.0" | 2837 fps | ••• | |
| ••• | 3.330" | 24.0" | 2998 fps | ••• | |
| ••• | 3.330" | 24.0" | 2793 fps | ••• | |
| ••• | 3.330" | 26.0" | 2916 fps | ••• | |
| ••• | 3.330" | 24.0" | 2863 fps | ••• | |
| ••• | 3.330" | 24.0" | 2979 fps | ••• | |
| ••• | 3.330" | 24.0" | 2630 fps | ••• | |
| ••• | 3.330" | 24.0" | 2812 fps | ••• | |
| ••• | 3.330" | 24.0" | 2679 fps | ••• | |
| ••• | 3.330" | 24.0" | 2865 fps | ••• | |
| ••• | 3.330" | 26.0" | 2889 fps | ••• | |
| ••• | 3.330" | 24.0" | 2965 fps | ••• | |
| ••• | 3.330" | 24.0" | 2992 fps | ••• | |
| ••• | 3.330" | 24.0" | 2799 fps | ••• | |
| ••• | 3.330" | 24.0" | 2647 fps | ••• | |
| ••• | 3.330" | 24.0" | 2901 fps | ••• | |
| ••• | 3.330" | 26.0" | 2920 fps | ••• | |
| ••• | 3.330" | 26.0" | 3007 fps | ••• | |
| ••• | 3.330" | 26.0" | 2847 fps | ••• | |
| ••• | 3.330" | 24.0" | 2698 fps | ••• | |
| ••• | 3.330" | 24.0" | 3011 fps | ••• | |
| ••• | 3.330" | 26.0" | 2909 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.