Load data for .25 WSSM + 100gr Speer Boat-Tail
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 | 100gr | Boat-Tail
Cartridge:.25 WSSM load data
Case Length (L3):1.670" | 42.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.377" | 9.6 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:1:11.5
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Community Loads for .25 WSSM + 100gr Speer Boat-Tail
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 | 2.270" | — | 3001 fps | ••• | |
| 48.0 gr | 2.270" | — | 3266 fps | ••• | |
| 38.0 gr | 2.300" | 24.0" | 2933 fps | ••• | |
| ••• | 2.300" | 24.0" | 3149 fps | ••• | |
| ••• | 2.300" | 24.0" | 2900 fps | ••• | |
| ••• | 2.300" | 24.0" | 3132 fps | ••• | |
| ••• | 2.300" | 24.0" | 2910 fps | ••• | |
| ••• | 2.300" | 24.0" | 3146 fps | ••• | |
| ••• | 2.270" | 24.0" | 3207 fps | ••• | |
| ••• | 2.270" | — | 2972 fps | ••• | |
| ••• | 2.270" | — | 2835 fps | ••• | |
| ••• | 2.270" | — | 3089 fps | ••• | |
| ••• | 2.270" | — | 2930 fps | ••• | |
| ••• | 2.270" | — | 3191 fps | ••• | |
| ••• | 2.300" | 24.0" | 3057 fps | ••• | |
| ••• | 2.300" | 24.0" | 3202 fps | ••• | |
| ••• | 2.270" | — | 2977 fps | ••• | |
| ••• | 2.300" | 24.0" | 3062 fps | ••• | |
| ••• | 2.270" | — | 3227 fps | ••• | |
| ••• | 2.300" | 24.0" | 2969 fps | ••• | |
| ••• | 2.270" | — | 3013 fps | ••• | |
| ••• | 2.300" | 24.0" | 3196 fps | ••• | |
| ••• | 2.270" | — | 3274 fps | ••• | |
| ••• | 2.300" | 24.0" | 3102 fps | ••• | |
| ••• | 2.300" | 24.0" | 2947 fps | ••• | |
| ••• | 2.300" | 24.0" | 3161 fps | ••• | |
| ••• | 2.300" | 24.0" | 2841 fps | ••• | |
| ••• | 2.300" | 24.0" | 3027 fps | ••• | |
| ••• | 2.300" | 24.0" | 3017 fps | ••• | |
| ••• | 2.300" | 24.0" | 2965 fps | ••• | |
| ••• | 2.270" | — | 3035 fps | ••• | |
| ••• | 2.300" | 24.0" | 3192 fps | ••• | |
| ••• | 2.300" | 24.0" | 2938 fps | ••• | |
| ••• | 2.270" | — | 2886 fps | ••• | |
| ••• | 2.300" | 24.0" | 2936 fps | ••• | |
| ••• | 2.300" | 24.0" | 3124 fps | ••• | |
| ••• | 2.300" | 24.0" | 3013 fps | ••• | |
| ••• | 2.300" | 24.0" | 3199 fps | ••• | |
| ••• | 2.300" | 24.0" | 2958 fps | ••• | |
| ••• | 2.270" | — | 3031 fps | ••• | |
| ••• | 2.300" | 24.0" | 3174 fps | ••• | |
| ••• | 2.270" | — | 2964 fps | ••• | |
| ••• | 2.270" | — | 3207 fps | ••• | |
| ••• | 2.270" | — | 2795 fps | ••• | |
| ••• | 2.270" | — | 3073 fps | ••• | |
| ••• | 2.300" | 24.0" | 2969 fps | ••• | |
| ••• | 2.270" | — | 3077 fps | ••• | |
| ••• | 2.300" | 24.0" | 3196 fps | ••• | |
| ••• | 2.300" | 24.0" | 2947 fps | ••• | |
| ••• | 2.300" | 24.0" | 2794 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.