Load data for .300 WSM + 180gr Speer Grand Slam
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:.308 | 180gr | Grand Slam
Cartridge:.300 WSM load data
Case Length (L3):2.090" | 53.1 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.490" | 12.4 mm
Case Capacity:81.3 gow | 5.27 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:1:15.0
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Community Loads for .300 WSM + 180gr Speer Grand Slam
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) |
|---|---|---|---|---|---|
| 58.0 gr | 2.760" | — | 2683 fps | ••• | |
| 62.0 gr | 2.760" | — | 2837 fps | ••• | |
| 61.6 gr | 2.760" | — | 2818 fps | ••• | |
| ••• | 2.760" | — | 2752 fps | ••• | |
| ••• | 2.760" | — | 2908 fps | ••• | |
| ••• | 2.760" | — | 2716 fps | ••• | |
| ••• | 2.760" | — | 2878 fps | ••• | |
| ••• | 2.760" | — | 2750 fps | ••• | |
| ••• | 2.760" | — | 2911 fps | ••• | |
| ••• | 2.760" | — | 2718 fps | ••• | |
| ••• | 2.760" | — | 2874 fps | ••• | |
| ••• | 2.760" | — | 2756 fps | ••• | |
| ••• | 2.760" | — | 2908 fps | ••• | |
| ••• | 2.760" | — | 2757 fps | ••• | |
| ••• | 2.760" | — | 2919 fps | ••• | |
| ••• | 2.760" | — | 2657 fps | ••• | |
| ••• | 2.760" | — | 2906 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.