Load data for .257 Weath. Mag. + 100gr Barnes TTSX BT
519 suitable loads across 76 powder(s) for cartridge .257 Weath. Mag. with 100gr Barnes TTSX BT bullet.
The most recommended powders for this combination are Winchester StaBALL HD, Hodgdon H4831 and Norma MRP.
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 Barnes TTSX BT
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) |
|---|---|---|---|---|---|
| 65.0 gr | 3.170" | 24.0" | 3232 fps | ••• | |
| 69.0 gr | 3.170" | 24.0" | 3404 fps | ••• | |
| 68.0 gr | 3.170" | 24.0" | 3129 fps | ••• | |
| ••• | 3.170" | 24.0" | 3334 fps | ••• | |
| ••• | 3.122" | 26.0" | 3399 fps | ••• | |
| ••• | 3.170" | 24.0" | 3207 fps | ••• | |
| ••• | 3.170" | 24.0" | 3375 fps | ••• | |
| ••• | 3.170" | 24.0" | 3202 fps | ••• | |
| ••• | 3.170" | 24.0" | 3405 fps | ••• | |
| ••• | 3.170" | 24.0" | 3127 fps | ••• | |
| ••• | 3.170" | 24.0" | 3330 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.