Load data for .257 Weath. Mag. + 100gr Sierra GameKing
489 suitable loads across 77 powder(s) for cartridge .257 Weath. Mag. with 100gr Sierra GameKing bullet.
The most recommended powders for this combination are Winchester StaBALL HD, IMR 7828 SSC and Hodgdon Retumbo.
Based on C.I.P., the max. allowed case length is 2.549 in / 64.74 mm, the max. cartridge length is 3.209 in / 81.51 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Based on C.I.P., the max. allowed case length is 2.549 in / 64.74 mm, the max. cartridge length is 3.209 in / 81.51 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Load Specifications
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Community Loads for .257 Weath. Mag. + 100gr Sierra GameKing
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) |
|---|---|---|---|---|---|
| 57.6 gr | 3.170" | 24.0" | 3162 fps | ••• | |
| 60.0 gr | 3.170" | 24.0" | 3269 fps | ••• | |
| 62.0 gr | 3.170" | 24.0" | 3070 fps | ••• | |
| ••• | 3.170" | 24.0" | 3175 fps | ••• | |
| ••• | 3.170" | 24.0" | 3067 fps | ••• | |
| ••• | 3.170" | 24.0" | 3166 fps | ••• | |
| ••• | 3.170" | 24.0" | 3265 fps | ••• | |
| ••• | 3.170" | 24.0" | 3310 fps | ••• | |
| ••• | 3.170" | 24.0" | 3356 fps | ••• | |
| ••• | 3.170" | 24.0" | 3088 fps | ••• | |
| ••• | 3.170" | 24.0" | 3211 fps | ••• | |
| ••• | 3.170" | 24.0" | 3272 fps | ••• | |
| ••• | 3.170" | 24.0" | 3324 fps | ••• | |
| ••• | 3.170" | 24.0" | 3134 fps | ••• | |
| ••• | 3.170" | 24.0" | 3255 fps | ••• | |
| ••• | 3.170" | 24.0" | 2925 fps | ••• | |
| ••• | 3.170" | 24.0" | 3047 fps | ••• | |
| ••• | 3.170" | 24.0" | 3167 fps | ••• | |
| ••• | 3.170" | 24.0" | 3273 fps | ••• | |
| ••• | 3.170" | 24.0" | 3322 fps | ••• | |
| ••• | 3.170" | 24.0" | 2817 fps | ••• | |
| ••• | 3.170" | 24.0" | 2913 fps | ••• | |
| ••• | 3.170" | 24.0" | 3015 fps | ••• | |
| ••• | 3.170" | 24.0" | 3121 fps | ••• | |
| ••• | 3.170" | 24.0" | 3172 fps | ••• | |
| ••• | 3.170" | 24.0" | 3299 fps | ••• | |
| ••• | 3.170" | 24.0" | 3326 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.