Load data for .300 Weath. Mag. + 150gr Nosler Expansion Tip
The most recommended powders for this combination are Hodgdon H4831.
Based on C.I.P., the max. allowed case length is 2.825 in / 71.75 mm, the max. cartridge length is 3.560 in / 90.42 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 2.825 in / 71.75 mm, the max. cartridge length is 3.560 in / 90.42 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications
ImperialMetric
Bullet:.308 | 150gr | Expansion Tip
Cartridge:.300 Weath. Mag. load data
Case Length (L3):2.824" | 71.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.617" | 15.7 mm
Case Capacity:98.9 gow | 6.41 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:12.0
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Community Loads for .300 Weath. Mag. + 150gr Nosler Expansion Tip
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) |
|---|---|---|---|---|---|
| 77.0 gr | 3.500" | 26.0" | 3123 fps | ••• | |
| 79.0 gr | 3.500" | 26.0" | 3201 fps | ••• | |
| 81.0 gr | 3.500" | 26.0" | 3277 fps | ••• | |
| ••• | 3.500" | 26.0" | 3166 fps | ••• | |
| ••• | 3.500" | 26.0" | 3245 fps | ••• | |
| ••• | 3.500" | 26.0" | 3327 fps | ••• | |
| ••• | 3.500" | 26.0" | 3088 fps | ••• | |
| ••• | 3.500" | 26.0" | 3159 fps | ••• | |
| ••• | 3.500" | 26.0" | 3228 fps | ••• | |
| ••• | 3.500" | 26.0" | 3181 fps | ••• | |
| ••• | 3.500" | 26.0" | 3252 fps | ••• | |
| ••• | 3.500" | 26.0" | 3226 fps | ••• | |
| ••• | 3.500" | 26.0" | 3297 fps | ••• | |
| ••• | 3.500" | 26.0" | 3203 fps | ••• | |
| ••• | 3.500" | 26.0" | 3283 fps | ••• | |
| ••• | 3.500" | 26.0" | 3363 fps | ••• | |
| ••• | 3.500" | 26.0" | 3255 fps | ••• | |
| ••• | 3.500" | 26.0" | 3332 fps | ••• | |
| ••• | 3.500" | 26.0" | 3414 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.