Load data for .300 Win. Mag. + 125gr Sierra Tipped MatchKing
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
Cartridge:.300 Win. Mag. load data
Case Length (L3):2.620" | 66.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.364" | 9.3 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:1:13.5
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Community Loads for .300 Win. Mag. + 125gr Sierra Tipped MatchKing
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) |
|---|---|---|---|---|---|
| 63.3 gr | 3.340" | 24.0" | 3114 fps | ••• | |
| 65.2 gr | 3.340" | 24.0" | 3196 fps | ••• | |
| 67.1 gr | 3.340" | 24.0" | 3274 fps | ••• | |
| ••• | 3.340" | 24.0" | 3353 fps | ••• | |
| ••• | 3.340" | 24.0" | 3435 fps | ••• | |
| ••• | 3.340" | 24.0" | 3138 fps | ••• | |
| ••• | 3.340" | 24.0" | 3221 fps | ••• | |
| ••• | 3.340" | 24.0" | 3310 fps | ••• | |
| ••• | 3.340" | 24.0" | 3398 fps | ••• | |
| ••• | 3.340" | 24.0" | 3493 fps | ••• | |
| ••• | 3.340" | 24.0" | 3064 fps | ••• | |
| ••• | 3.340" | 24.0" | 3141 fps | ••• | |
| ••• | 3.340" | 24.0" | 3214 fps | ••• | |
| ••• | 3.340" | 24.0" | 3292 fps | ••• | |
| ••• | 3.340" | 24.0" | 3369 fps | ••• | |
| ••• | 3.340" | 24.0" | 3444 fps | ••• | |
| ••• | 3.340" | 24.0" | 3156 fps | ••• | |
| ••• | 3.340" | 24.0" | 3222 fps | ••• | |
| ••• | 3.340" | 24.0" | 3307 fps | ••• | |
| ••• | 3.340" | 24.0" | 3393 fps | ••• | |
| ••• | 3.340" | 24.0" | 3203 fps | ••• | |
| ••• | 3.340" | 24.0" | 3283 fps | ••• | |
| ••• | 3.340" | 24.0" | 3359 fps | ••• | |
| ••• | 3.340" | 24.0" | 2977 fps | ••• | |
| ••• | 3.340" | 24.0" | 3061 fps | ••• | |
| ••• | 3.340" | 24.0" | 3152 fps | ••• | |
| ••• | 3.340" | 24.0" | 3243 fps | ••• | |
| ••• | 3.340" | 24.0" | 3339 fps | ••• | |
| ••• | 3.340" | 24.0" | 2995 fps | ••• | |
| ••• | 3.340" | 24.0" | 3066 fps | ••• | |
| ••• | 3.340" | 24.0" | 3135 fps | ••• | |
| ••• | 3.340" | 24.0" | 3205 fps | ••• | |
| ••• | 3.340" | 24.0" | 3276 fps | ••• | |
| ••• | 3.340" | 24.0" | 2990 fps | ••• | |
| ••• | 3.340" | 24.0" | 3067 fps | ••• | |
| ••• | 3.340" | 24.0" | 3149 fps | ••• | |
| ••• | 3.340" | 24.0" | 3230 fps | ••• | |
| ••• | 3.340" | 24.0" | 3317 fps | ••• | |
| ••• | 3.340" | 24.0" | 3260 fps | ••• | |
| ••• | 3.340" | 24.0" | 3341 fps | ••• | |
| ••• | 3.340" | 24.0" | 3283 fps | ••• | |
| ••• | 3.340" | 24.0" | 3379 fps | ••• | |
| ••• | 3.340" | 24.0" | 2976 fps | ••• | |
| ••• | 3.340" | 24.0" | 3067 fps | ••• | |
| ••• | 3.340" | 24.0" | 3163 fps | ••• | |
| ••• | 3.340" | 24.0" | 3254 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.