Load data for .300 Win. Mag. + 180gr Speer Hot-Cor
Based on C.I.P., the max. allowed case length is 2.620 in / 66.55 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.

Based on C.I.P., the max. allowed case length is 2.620 in / 66.55 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.

Load Specifications
ImperialMetric
Bullet:.311 | 180gr | Hot-Cor
Cartridge:.300 Win. Mag. load data
Case Length (L3):2.620" | 66.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.350" | 8.9 mm
Case Capacity:90.5 gow | 5.86 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):62,366 psi | 4,300 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:17.0
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Community Loads for .300 Win. Mag. + 180gr Speer Hot-Cor
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) |
|---|---|---|---|---|---|
| 75.0 gr | 3.340" | — | 2786 fps | ••• | |
| 69.8 gr | 3.340" | — | 2728 fps | ••• | |
| 70.1 gr | 3.340" | — | 2648 fps | ••• | |
| ••• | 3.340" | — | 2943 fps | ••• | |
| ••• | 3.340" | — | 2705 fps | ••• | |
| ••• | 3.340" | — | 2810 fps | ••• | |
| ••• | 3.340" | — | 2949 fps | ••• | |
| ••• | 3.340" | — | 2675 fps | ••• | |
| ••• | 3.340" | — | 2821 fps | ••• | |
| ••• | 3.340" | — | 2798 fps | ••• | |
| ••• | 3.340" | — | 2929 fps | ••• | |
| ••• | 3.340" | — | 2788 fps | ••• | |
| ••• | 3.340" | — | 2918 fps | ••• | |
| ••• | 3.340" | — | 2832 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.