Load data for .300 Win. Mag. + 150gr Speer Boat-Tail
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:.308 | 150gr | Boat-Tail
Cartridge:.300 Win. Mag. load data
Case Length (L3):2.620" | 66.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.369" | 9.4 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:1:15.0
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Community Loads for .300 Win. Mag. + 150gr Speer Boat-Tail
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) |
|---|---|---|---|---|---|
| 69.0 gr | 3.330" | — | 2976 fps | ••• | |
| 76.0 gr | 3.330" | — | 2894 fps | ••• | |
| 80.0 gr | 3.330" | — | 3047 fps | ••• | |
| ••• | 3.330" | — | 3010 fps | ••• | |
| ••• | 3.330" | — | 2957 fps | ••• | |
| ••• | 3.330" | 24.0" | 3198 fps | ••• | |
| ••• | 3.330" | — | 3232 fps | ••• | |
| ••• | 3.330" | — | 2964 fps | ••• | |
| ••• | 3.330" | — | 3118 fps | ••• | |
| ••• | 3.330" | — | 2933 fps | ••• | |
| ••• | 3.330" | — | 3090 fps | ••• | |
| ••• | 3.330" | — | 2865 fps | ••• | |
| ••• | 3.330" | — | 3152 fps | ••• | |
| ••• | 3.330" | — | 2885 fps | ••• | |
| ••• | 3.330" | — | 3217 fps | ••• | |
| ••• | 3.330" | — | 2855 fps | ••• | |
| ••• | 3.330" | — | 3022 fps | ••• | |
| ••• | 3.330" | — | 3053 fps | ••• | |
| ••• | 3.330" | — | 2917 fps | ••• | |
| ••• | 3.330" | — | 3092 fps | ••• | |
| ••• | 3.330" | — | 2926 fps | ••• | |
| ••• | 3.330" | — | 3083 fps | ••• | |
| ••• | 3.330" | — | 2879 fps | ••• | |
| ••• | 3.330" | — | 3027 fps | ••• | |
| ••• | 3.330" | — | 3005 fps | ••• | |
| ••• | 3.330" | — | 3150 fps | ••• | |
| ••• | 3.330" | — | 3035 fps | ••• | |
| ••• | 3.330" | — | 3179 fps | ••• | |
| ••• | 3.330" | — | 2878 fps | ••• | |
| ••• | 3.330" | — | 3067 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.