Load data for .257 Weath. Mag. + 85gr Nosler Ballistic Tip Varmint
The most recommended powders for this combination are Alliant Reloder-19.
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
ImperialMetric
Cartridge:.257 Weath. Mag. load data
Case Length (L3):2.549" | 64.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.337" | 8.6 mm
Case Capacity:84 gow | 5.44 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:26.0" | 660 mm
Min. Twist Rate:1:10.5
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Community Loads for .257 Weath. Mag. + 85gr Nosler Ballistic Tip Varmint
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) |
|---|---|---|---|---|---|
| 60.6 gr | 3.250" | 26.0" | 3378 fps | ••• | |
| 67.3 gr | 3.250" | 26.0" | 3685 fps | ••• | |
| 69.0 gr | 3.250" | 26.0" | 3357 fps | ••• | |
| ••• | 3.250" | 26.0" | 3749 fps | ••• | |
| ••• | 3.250" | 26.0" | 3335 fps | ••• | |
| ••• | 3.250" | 26.0" | 3534 fps | ••• | |
| ••• | 3.250" | 26.0" | 3640 fps | ••• | |
| ••• | 3.250" | 26.0" | 3555 fps | ••• | |
| ••• | 3.209" | 26.0" | 3611 fps | ••• | |
| ••• | 3.209" | 26.0" | 3699 fps | ••• | |
| ••• | 3.209" | 26.0" | 3497 fps | ••• | |
| ••• | 3.209" | 26.0" | 3599 fps | ••• | |
| ••• | 3.209" | 26.0" | 3692 fps | ••• | |
| ••• | 3.250" | 26.0" | 3592 fps | ••• | |
| ••• | 3.250" | 26.0" | 3442 fps | ••• | |
| ••• | 3.250" | 26.0" | 3635 fps | ••• | |
| ••• | 3.250" | 26.0" | 3540 fps | ••• | |
| ••• | 3.209" | 26.0" | 3598 fps | ••• | |
| ••• | 3.209" | 26.0" | 3686 fps | ••• | |
| ••• | 3.209" | 26.0" | 3438 fps | ••• | |
| ••• | 3.209" | 26.0" | 3538 fps | ••• | |
| ••• | 3.209" | 26.0" | 3635 fps | ••• | |
| ••• | 3.209" | 26.0" | 3546 fps | ••• | |
| ••• | 3.209" | 26.0" | 3629 fps | ••• | |
| ••• | 3.209" | 26.0" | 3423 fps | ••• | |
| ••• | 3.209" | 26.0" | 3517 fps | ••• | |
| ••• | 3.209" | 26.0" | 3610 fps | ••• | |
| ••• | 3.250" | 26.0" | 3092 fps | ••• | |
| ••• | 3.250" | 26.0" | 3537 fps | ••• | |
| ••• | 3.250" | 26.0" | 3168 fps | ••• | |
| ••• | 3.250" | 26.0" | 3565 fps | ••• | |
| ••• | 3.209" | 26.0" | 3610 fps | ••• | |
| ••• | 3.209" | 26.0" | 3531 fps | ••• | |
| ••• | 3.209" | 26.0" | 3623 fps | ••• | |
| ••• | 3.209" | 26.0" | 3713 fps | ••• | |
| ••• | 3.209" | 26.0" | 3513 fps | ••• | |
| ••• | 3.209" | 26.0" | 3611 fps | ••• | |
| ••• | 3.209" | 26.0" | 3714 fps | ••• | |
| ••• | 3.250" | 26.0" | 3755 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.