Load data for .25 WSSM + 87gr Sierra VarmintKing
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
Bullet:.257 | 87gr | VarmintKing
Cartridge:.25 WSSM load data
Case Length (L3):1.670" | 42.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.230" | 5.8 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:1:13.5
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Community Loads for .25 WSSM + 87gr 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) |
|---|---|---|---|---|---|
| 44.8 gr | 2.360" | 26.0" | 3161 fps | ••• | |
| 45.6 gr | 2.360" | 26.0" | 3211 fps | ••• | |
| 46.4 gr | 2.360" | 26.0" | 3260 fps | ••• | |
| ••• | 2.360" | 26.0" | 3312 fps | ••• | |
| ••• | 2.360" | 26.0" | 3028 fps | ••• | |
| ••• | 2.360" | 26.0" | 3081 fps | ••• | |
| ••• | 2.360" | 26.0" | 3133 fps | ••• | |
| ••• | 2.360" | 26.0" | 3184 fps | ••• | |
| ••• | 2.360" | 26.0" | 3155 fps | ••• | |
| ••• | 2.360" | 26.0" | 3190 fps | ••• | |
| ••• | 2.360" | 26.0" | 3222 fps | ••• | |
| ••• | 2.300" | 24.0" | 3162 fps | ••• | |
| ••• | 2.360" | 26.0" | 3206 fps | ••• | |
| ••• | 2.360" | 26.0" | 3257 fps | ••• | |
| ••• | 2.360" | 26.0" | 3303 fps | ••• | |
| ••• | 2.300" | 24.0" | 3046 fps | ••• | |
| ••• | 2.300" | 24.0" | 3127 fps | ••• | |
| ••• | 2.360" | 26.0" | 3023 fps | ••• | |
| ••• | 2.360" | 26.0" | 3074 fps | ••• | |
| ••• | 2.300" | 24.0" | 3080 fps | ••• | |
| ••• | 2.360" | 26.0" | 3126 fps | ••• | |
| ••• | 2.360" | 26.0" | 3183 fps | ••• | |
| ••• | 2.360" | 26.0" | 3063 fps | ••• | |
| ••• | 2.300" | 24.0" | 3048 fps | ••• | |
| ••• | 2.360" | 26.0" | 3108 fps | ••• | |
| ••• | 2.360" | 26.0" | 3152 fps | ••• | |
| ••• | 2.360" | 26.0" | 3197 fps | ••• | |
| ••• | 2.300" | 24.0" | 2957 fps | ••• | |
| ••• | 2.360" | 26.0" | 3048 fps | ••• | |
| ••• | 2.360" | 26.0" | 3092 fps | ••• | |
| ••• | 2.360" | 26.0" | 3142 fps | ••• | |
| ••• | 2.360" | 26.0" | 3186 fps | ••• | |
| ••• | 2.300" | 24.0" | 3029 fps | ••• | |
| ••• | 2.300" | 24.0" | 3239 fps | ••• | |
| ••• | 2.360" | 26.0" | 3058 fps | ••• | |
| ••• | 2.360" | 26.0" | 3106 fps | ••• | |
| ••• | 2.360" | 26.0" | 3156 fps | ••• | |
| ••• | 2.360" | 26.0" | 3190 fps | ••• | |
| ••• | 2.360" | 26.0" | 3239 fps | ••• | |
| ••• | 2.360" | 26.0" | 3035 fps | ••• | |
| ••• | 2.360" | 26.0" | 3083 fps | ••• | |
| ••• | 2.360" | 26.0" | 3130 fps | ••• | |
| ••• | 2.300" | 24.0" | 3046 fps | ••• | |
| ••• | 2.360" | 26.0" | 3144 fps | ••• | |
| ••• | 2.360" | 26.0" | 3193 fps | ••• | |
| ••• | 2.360" | 26.0" | 3246 fps | ••• | |
| ••• | 2.360" | 26.0" | 3071 fps | ••• | |
| ••• | 2.360" | 26.0" | 3119 fps | ••• | |
| ••• | 2.360" | 26.0" | 3157 fps | ••• | |
| ••• | 2.360" | 26.0" | 3202 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.