Load data for .25 WSSM + 100gr Speer Varmint Hollow Point
Based on C.I.P., the max. allowed case length is 1.670 in / 42.42 mm, the max. cartridge length is 2.360 in / 59.94 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 1.670 in / 42.42 mm, the max. cartridge length is 2.360 in / 59.94 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications
ImperialMetric
Cartridge:.25 WSSM load data
Case Length (L3):1.670" | 42.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.350" | 8.9 mm
Case Capacity:54.3 gow | 3.52 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:12.0
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Community Loads for .25 WSSM + 100gr Speer Varmint Hollow Point
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) |
|---|---|---|---|---|---|
| 44.0 gr | 2.280" | — | 2997 fps | ••• | |
| 48.0 gr | 2.280" | — | 3262 fps | ••• | |
| 35.0 gr | 2.280" | — | 2968 fps | ••• | |
| ••• | 2.280" | — | 2833 fps | ••• | |
| ••• | 2.280" | — | 3084 fps | ••• | |
| ••• | 2.280" | — | 2923 fps | ••• | |
| ••• | 2.280" | — | 3185 fps | ••• | |
| ••• | 2.280" | — | 2971 fps | ••• | |
| ••• | 2.280" | — | 3222 fps | ••• | |
| ••• | 2.280" | — | 3009 fps | ••• | |
| ••• | 2.280" | — | 3267 fps | ••• | |
| ••• | 2.280" | — | 3031 fps | ••• | |
| ••• | 2.280" | — | 2880 fps | ••• | |
| ••• | 2.280" | — | 3130 fps | ••• | |
| ••• | 2.280" | — | 3026 fps | ••• | |
| ••• | 2.280" | — | 2958 fps | ••• | |
| ••• | 2.280" | — | 3201 fps | ••• | |
| ••• | 2.280" | — | 2790 fps | ••• | |
| ••• | 2.280" | — | 3067 fps | ••• | |
| ••• | 2.280" | — | 3074 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.