Load data for .378 Weath. Mag. + 270gr Hornady SP
Based on C.I.P., the max. allowed case length is 2.913 in / 73.99 mm, the max. cartridge length is 3.655 in / 92.84 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Based on C.I.P., the max. allowed case length is 2.913 in / 73.99 mm, the max. cartridge length is 3.655 in / 92.84 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Load Specifications
ImperialMetric
Bullet:.375 | 270gr | SP
Cartridge:.378 Weath. Mag. load data
Case Length (L3):2.913" | 74.0 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.489" | 12.4 mm
Case Capacity:137 gow | 8.88 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:1:6.0
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Community Loads for .378 Weath. Mag. + 270gr Hornady SP
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) |
|---|---|---|---|---|---|
| 99.0 gr | 3.645" | 26.0" | 2894 fps | ••• | |
| 105.0 gr | 3.645" | 26.0" | 2773 fps | ••• | |
| 115.0 gr | 3.645" | 26.0" | 3025 fps | ••• | |
| ••• | 3.655" | — | 2931 fps | ••• | |
| ••• | 3.655" | — | 3088 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.