Load data for 7 mm WSM + 140gr Sierra SBT GameKing
Based on C.I.P., the max. allowed case length is 2.100 in / 53.34 mm, the max. cartridge length is 2.860 in / 72.64 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Based on C.I.P., the max. allowed case length is 2.100 in / 53.34 mm, the max. cartridge length is 2.860 in / 72.64 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Load Specifications
ImperialMetric
Bullet:.284 | 140gr | SBT GameKing
Cartridge:7 mm WSM load data
Case Length (L3):2.090" | 53.1 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.450" | 11.4 mm
Case Capacity:81.1 gow | 5.26 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:12.0
Get PRO license to unlock all data and calculators
Community Loads for 7 mm WSM + 140gr Sierra SBT GameKing
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) |
|---|---|---|---|---|---|
| 58.7 gr | 2.800" | 24.0" | 2905 fps | ••• | |
| 68.1 gr | 2.800" | 24.0" | 2971 fps | ••• | |
| 55.2 gr | 2.860" | 24.0" | 2808 fps | ••• | |
| ••• | 2.860" | 24.0" | 2865 fps | ••• | |
| ••• | 2.860" | 24.0" | 2930 fps | ••• | |
| ••• | 2.860" | 24.0" | 2744 fps | ••• | |
| ••• | 2.860" | 24.0" | 2804 fps | ••• | |
| ••• | 2.860" | 24.0" | 2868 fps | ••• | |
| ••• | 2.860" | 24.0" | 2801 fps | ••• | |
| ••• | 2.860" | 24.0" | 2847 fps | ••• | |
| ••• | 2.860" | 24.0" | 2891 fps | ••• | |
| ••• | 2.860" | 24.0" | 2937 fps | ••• | |
| ••• | 2.860" | 24.0" | 2986 fps | ••• | |
| ••• | 2.860" | 24.0" | 2797 fps | ••• | |
| ••• | 2.860" | 24.0" | 2858 fps | ••• | |
| ••• | 2.860" | 24.0" | 2920 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.