Load data for .300 Weath. Mag. + 165gr Speer Grand Slam
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 | 165gr | Grand Slam
Cartridge:.300 Weath. Mag. load data
Case Length (L3):2.824" | 71.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.409" | 10.4 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:1:15.5
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Community Loads for .300 Weath. Mag. + 165gr Speer Grand Slam
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) |
|---|---|---|---|---|---|
| 76.0 gr | 3.495" | — | 2794 fps | ••• | |
| 80.0 gr | 3.495" | — | 2931 fps | ••• | |
| 70.0 gr | 3.495" | — | 2866 fps | ••• | |
| ••• | 3.495" | — | 3005 fps | ••• | |
| ••• | 3.495" | — | 2930 fps | ••• | |
| ••• | 3.495" | — | 3072 fps | ••• | |
| ••• | 3.495" | — | 2944 fps | ••• | |
| ••• | 3.495" | — | 3090 fps | ••• | |
| ••• | 3.495" | — | 3063 fps | ••• | |
| ••• | 3.495" | — | 3204 fps | ••• | |
| ••• | 3.495" | — | 2916 fps | ••• | |
| ••• | 3.495" | — | 3073 fps | ••• | |
| ••• | 3.495" | — | 2850 fps | ••• | |
| ••• | 3.495" | — | 2990 fps | ••• | |
| ••• | 3.495" | — | 2941 fps | ••• | |
| ••• | 3.495" | — | 3082 fps | ••• | |
| ••• | 3.495" | — | 2895 fps | ••• | |
| ••• | 3.495" | — | 3042 fps | ••• | |
| ••• | 3.495" | — | 2808 fps | ••• | |
| ••• | 3.495" | — | 2946 fps | ••• | |
| ••• | 3.495" | — | 2959 fps | ••• | |
| ••• | 3.495" | — | 3089 fps | ••• | |
| ••• | 3.495" | — | 2961 fps | ••• | |
| ••• | 3.495" | — | 3097 fps | ••• | |
| ••• | 3.495" | — | 2850 fps | ••• | |
| ••• | 3.495" | — | 2990 fps | ••• | |
| ••• | 3.495" | — | 2894 fps | ••• | |
| ••• | 3.495" | — | 3048 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.