Load data for .280 Ackley Improved + 100gr Sierra VarmintKing
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 | 100gr | VarmintKing
Cartridge:.280 Ackley Improved load data
Case Length (L3):2.540" | 64.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.284" | 7.2 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:1:15.0
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Community Loads for .280 Ackley Improved + 100gr Sierra VarmintKing
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) |
|---|---|---|---|---|---|
| 54.2 gr | 3.330" | 26.0" | 2881 fps | ••• | |
| 55.9 gr | 3.330" | 26.0" | 2970 fps | ••• | |
| 57.6 gr | 3.330" | 26.0" | 3060 fps | ••• | |
| ••• | 3.330" | 26.0" | 3102 fps | ••• | |
| ••• | 3.330" | 26.0" | 3171 fps | ••• | |
| ••• | 3.330" | 26.0" | 3221 fps | ••• | |
| ••• | 3.330" | 26.0" | 2791 fps | ••• | |
| ••• | 3.330" | 26.0" | 2901 fps | ••• | |
| ••• | 3.330" | 26.0" | 2956 fps | ••• | |
| ••• | 3.330" | 26.0" | 3010 fps | ••• | |
| ••• | 3.330" | 26.0" | 3098 fps | ••• | |
| ••• | 3.330" | 26.0" | 2938 fps | ••• | |
| ••• | 3.330" | 26.0" | 3114 fps | ••• | |
| ••• | 3.330" | 26.0" | 3192 fps | ••• | |
| ••• | 3.330" | 26.0" | 2861 fps | ••• | |
| ••• | 3.330" | 26.0" | 2957 fps | ••• | |
| ••• | 3.330" | 26.0" | 2970 fps | ••• | |
| ••• | 3.330" | 26.0" | 3004 fps | ••• | |
| ••• | 3.330" | 26.0" | 3034 fps | ••• | |
| ••• | 3.330" | 26.0" | 3097 fps | ••• | |
| ••• | 3.330" | 26.0" | 2897 fps | ••• | |
| ••• | 3.330" | 26.0" | 2993 fps | ••• | |
| ••• | 3.330" | 26.0" | 3007 fps | ••• | |
| ••• | 3.330" | 26.0" | 3078 fps | ••• | |
| ••• | 3.330" | 26.0" | 3088 fps | ••• | |
| ••• | 3.330" | 26.0" | 3146 fps | ••• | |
| ••• | 3.330" | 26.0" | 3216 fps | ••• | |
| ••• | 3.330" | 26.0" | 3286 fps | ••• | |
| ••• | 3.330" | 26.0" | 3320 fps | ••• | |
| ••• | 3.330" | 26.0" | 2960 fps | ••• | |
| ••• | 3.330" | 26.0" | 2986 fps | ••• | |
| ••• | 3.330" | 26.0" | 3033 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.