Load data for .357 Mag. + 158gr Sierra JSP FN
219 suitable loads across 37 powder(s) for cartridge .357 Mag. with 158gr Sierra JSP FN bullet.
The most recommended powders for this combination are Vihtavuori N105, Vihtavuori N350 and ADI AP 100.
Based on C.I.P., the max. allowed case length is 1.290 in / 32.77 mm, the max. cartridge length is 1.590 in / 40.39 mm, and the max. allowed pressure is 43,511 PSI / 3,000 bar.

Based on C.I.P., the max. allowed case length is 1.290 in / 32.77 mm, the max. cartridge length is 1.590 in / 40.39 mm, and the max. allowed pressure is 43,511 PSI / 3,000 bar.

Load Specifications
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Community Loads for .357 Mag. + 158gr Sierra JSP FN
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) |
|---|---|---|---|---|---|
| 13.4 gr | 1.590" | 5.6" | 1357 fps | ••• | |
| 12.7 gr | 1.590" | 5.6" | 1287 fps | ••• | |
| 13.4 gr | 1.590" | 5.6" | 1356 fps | ••• | |
| ••• | 1.590" | 5.6" | 1397 fps | ••• | |
| ••• | 1.590" | 5.6" | 1079 fps | ••• | |
| ••• | 1.590" | 5.6" | 1085 fps | ••• | |
| ••• | 1.590" | 5.6" | 1120 fps | ••• | |
| ••• | 1.590" | 5.6" | 1186 fps | ••• | |
| ••• | 1.590" | 5.6" | 1234 fps | ••• | |
| ••• | 1.590" | 5.6" | 1352 fps | ••• | |
| ••• | 1.590" | 5.6" | 1412 fps | ••• | |
| ••• | 1.590" | 5.6" | 1474 fps | ••• | |
| ••• | 1.590" | 5.6" | 1099 fps | ••• | |
| ••• | 1.590" | 5.6" | 1075 fps | ••• | |
| ••• | 1.590" | 24.0" | 1581 fps | ••• | |
| ••• | 1.590" | 5.6" | 1037 fps | ••• | |
| ••• | 1.583" | 24.0" | 1598 fps | ••• | |
| ••• | 1.587" | 24.0" | 1585 fps | ••• | |
| ••• | 1.587" | 24.0" | 1634 fps | ••• | |
| ••• | 1.587" | 24.0" | 1683 fps | ••• | |
| ••• | 1.590" | 24.0" | 1683 fps | ••• | |
| ••• | 1.590" | 5.6" | 1079 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.