Load data for 7 mm STW + 145gr Speer Grand Slam
Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.650 in / 92.71 mm, and the max. allowed pressure is 66,717 PSI / 4,600 bar.
Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.650 in / 92.71 mm, and the max. allowed pressure is 66,717 PSI / 4,600 bar.
Load Specifications
ImperialMetric
Bullet:.284 | 145gr | Grand Slam
Cartridge:7 mm STW load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.410" | 10.4 mm
Case Capacity:97 gow | 6.29 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):66,717 psi | 4,600 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:13.0
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Community Loads for 7 mm STW + 145gr 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) |
|---|---|---|---|---|---|
| 76.0 gr | 3.550" | — | 2956 fps | ••• | |
| 78.0 gr | 3.550" | — | 3022 fps | ••• | |
| 75.0 gr | 3.550" | — | 2985 fps | ••• | |
| ••• | 3.550" | — | 3056 fps | ••• | |
| ••• | 3.550" | — | 2754 fps | ••• | |
| ••• | 3.550" | — | 2928 fps | ••• | |
| ••• | 3.550" | — | 3064 fps | ••• | |
| ••• | 3.550" | — | 3024 fps | ••• | |
| ••• | 3.550" | — | 3008 fps | ••• | |
| ••• | 3.550" | — | 3051 fps | ••• | |
| ••• | 3.550" | — | 2869 fps | ••• | |
| ••• | 3.550" | — | 2934 fps | ••• | |
| ••• | 3.550" | — | 2926 fps | ••• | |
| ••• | 3.550" | — | 2990 fps | ••• | |
| ••• | 3.550" | — | 2743 fps | ••• | |
| ••• | 3.550" | — | 3028 fps | ••• | |
| ••• | 3.550" | — | 2868 fps | ••• | |
| ••• | 3.550" | — | 3113 fps | ••• | |
| ••• | 3.550" | — | 3020 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.