Load data for .280 Ackley Improved + 130gr Sierra HPBT MatchKing
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:0.400" | 10.2 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:1:11.5
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Community Loads for .280 Ackley Improved + 130gr Sierra HPBT MatchKing
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) |
|---|---|---|---|---|---|
| 50.0 gr | 3.320" | 24.0" | 2852 fps | ••• | |
| 53.4 gr | 3.320" | 24.0" | 2990 fps | ••• | |
| 58.8 gr | 3.330" | 26.0" | 2795 fps | ••• | |
| ••• | 3.330" | 26.0" | 2847 fps | ••• | |
| ••• | 3.320" | 24.0" | 3018 fps | ••• | |
| ••• | 3.330" | 26.0" | 2764 fps | ••• | |
| ••• | 3.330" | 26.0" | 2866 fps | ••• | |
| ••• | 3.330" | 26.0" | 2968 fps | ••• | |
| ••• | 3.320" | 24.0" | 3055 fps | ••• | |
| ••• | 3.320" | 24.0" | 3196 fps | ••• | |
| ••• | 3.320" | 24.0" | 2807 fps | ••• | |
| ••• | 3.320" | 24.0" | 3162 fps | ••• | |
| ••• | 3.330" | 26.0" | 2611 fps | ••• | |
| ••• | 3.330" | 26.0" | 2713 fps | ••• | |
| ••• | 3.330" | 26.0" | 2813 fps | ••• | |
| ••• | 3.330" | 26.0" | 2832 fps | ••• | |
| ••• | 3.330" | 26.0" | 2890 fps | ••• | |
| ••• | 3.330" | 26.0" | 2913 fps | ••• | |
| ••• | 3.330" | 26.0" | 2953 fps | ••• | |
| ••• | 3.320" | 24.0" | 2861 fps | ••• | |
| ••• | 3.320" | 24.0" | 2874 fps | ••• | |
| ••• | 3.330" | 26.0" | 2668 fps | ••• | |
| ••• | 3.330" | 26.0" | 2742 fps | ••• | |
| ••• | 3.330" | 26.0" | 2765 fps | ••• | |
| ••• | 3.330" | 26.0" | 2831 fps | ••• | |
| ••• | 3.330" | 26.0" | 2861 fps | ••• | |
| ••• | 3.330" | 26.0" | 2908 fps | ••• | |
| ••• | 3.330" | 26.0" | 2917 fps | ••• | |
| ••• | 3.330" | 26.0" | 2958 fps | ••• | |
| ••• | 3.330" | 26.0" | 3005 fps | ••• | |
| ••• | 3.320" | 24.0" | 2855 fps | ••• | |
| ••• | 3.320" | 24.0" | 3015 fps | ••• | |
| ••• | 3.330" | 26.0" | 2676 fps | ••• | |
| ••• | 3.330" | 26.0" | 2765 fps | ••• | |
| ••• | 3.330" | 26.0" | 2854 fps | ••• | |
| ••• | 3.330" | 26.0" | 2871 fps | ••• | |
| ••• | 3.330" | 26.0" | 2941 fps | ••• | |
| ••• | 3.330" | 26.0" | 2978 fps | ••• | |
| ••• | 3.330" | 26.0" | 3028 fps | ••• | |
| ••• | 3.320" | 24.0" | 2977 fps | ••• | |
| ••• | 3.330" | 26.0" | 3113 fps | ••• | |
| ••• | 3.320" | 24.0" | 2825 fps | ••• | |
| ••• | 3.320" | 24.0" | 3002 fps | ••• | |
| ••• | 3.320" | 24.0" | 2967 fps | ••• | |
| ••• | 3.320" | 24.0" | 2970 fps | ••• | |
| ••• | 3.330" | 26.0" | 2799 fps | ••• | |
| ••• | 3.330" | 26.0" | 2906 fps | ••• | |
| ••• | 3.330" | 26.0" | 2773 fps | ••• | |
| ••• | 3.330" | 26.0" | 2816 fps | ••• | |
| ••• | 3.330" | 26.0" | 2903 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.