Load data for .300 Rem. Ultra Mag. + 168gr Sierra Tipped MatchKing
Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 64,977 PSI / 4,480 bar.

Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 64,977 PSI / 4,480 bar.

Load Specifications
ImperialMetric
Cartridge:.300 Rem. Ultra Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.610" | 15.5 mm
Case Capacity:112.5 gow | 7.29 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):64,977 psi | 4,480 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:12.0
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Community Loads for .300 Rem. Ultra Mag. + 168gr 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) |
|---|---|---|---|---|---|
| 85.7 gr | 3.598" | 24.0" | 2854 fps | ••• | |
| 89.3 gr | 3.598" | 24.0" | 2959 fps | ••• | |
| 90.9 gr | 3.598" | 24.0" | 3005 fps | ••• | |
| ••• | 3.598" | 24.0" | 3049 fps | ••• | |
| ••• | 3.598" | 24.0" | 3095 fps | ••• | |
| ••• | 3.598" | 24.0" | 2796 fps | ••• | |
| ••• | 3.598" | 24.0" | 2901 fps | ••• | |
| ••• | 3.598" | 24.0" | 2947 fps | ••• | |
| ••• | 3.598" | 24.0" | 3000 fps | ••• | |
| ••• | 3.598" | 24.0" | 3041 fps | ••• | |
| ••• | 3.598" | 24.0" | 3084 fps | ••• | |
| ••• | 3.598" | 24.0" | 2994 fps | ••• | |
| ••• | 3.598" | 24.0" | 2955 fps | ••• | |
| ••• | 3.598" | 24.0" | 3001 fps | ••• | |
| ••• | 3.598" | 24.0" | 3025 fps | ••• | |
| ••• | 3.598" | 24.0" | 3048 fps | ••• | |
| ••• | 3.598" | 24.0" | 2961 fps | ••• | |
| ••• | 3.598" | 24.0" | 3051 fps | ••• | |
| ••• | 3.598" | 24.0" | 3101 fps | ••• | |
| ••• | 3.598" | 24.0" | 3148 fps | ••• | |
| ••• | 3.598" | 24.0" | 3193 fps | ••• | |
| ••• | 3.598" | 24.0" | 2915 fps | ••• | |
| ••• | 3.598" | 24.0" | 2948 fps | ••• | |
| ••• | 3.598" | 24.0" | 2984 fps | ••• | |
| ••• | 3.598" | 24.0" | 2792 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.