Load data for .300 Rem. SA Ultra Mag. + 155gr Sierra Tipped MatchKing
Based on SAAMI, the max. allowed case length is 2.015 in / 51.18 mm, the max. cartridge length is 2.825 in / 71.75 mm, and the max. allowed pressure is 65,000 PSI / 4,482 bar.

Based on SAAMI, the max. allowed case length is 2.015 in / 51.18 mm, the max. cartridge length is 2.825 in / 71.75 mm, and the max. allowed pressure is 65,000 PSI / 4,482 bar.

Load Specifications
ImperialMetric
Cartridge:.300 Rem. SA Ultra Mag. load data
Case Length (L3):2.003" | 50.9 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.493" | 12.5 mm
Case Capacity:74 gow | 4.80 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (SAAMI):65,000 psi | 4,482 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:12.5
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Community Loads for .300 Rem. SA Ultra Mag. + 155gr 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) |
|---|---|---|---|---|---|
| 50.0 gr | 2.825" | 24.0" | 2691 fps | ••• | |
| 52.2 gr | 2.825" | 24.0" | 2790 fps | ••• | |
| 54.3 gr | 2.825" | 24.0" | 2884 fps | ••• | |
| ••• | 2.825" | 24.0" | 2923 fps | ••• | |
| ••• | 2.825" | 24.0" | 2964 fps | ••• | |
| ••• | 2.825" | 24.0" | 2658 fps | ••• | |
| ••• | 2.825" | 24.0" | 2748 fps | ••• | |
| ••• | 2.825" | 24.0" | 2838 fps | ••• | |
| ••• | 2.825" | 24.0" | 2933 fps | ••• | |
| ••• | 2.825" | 24.0" | 2979 fps | ••• | |
| ••• | 2.825" | 24.0" | 3026 fps | ••• | |
| ••• | 2.825" | 24.0" | 2625 fps | ••• | |
| ••• | 2.825" | 24.0" | 2707 fps | ••• | |
| ••• | 2.825" | 24.0" | 2788 fps | ••• | |
| ••• | 2.825" | 24.0" | 2867 fps | ••• | |
| ••• | 2.825" | 24.0" | 2904 fps | ••• | |
| ••• | 2.825" | 24.0" | 2946 fps | ••• | |
| ••• | 2.825" | 24.0" | 2816 fps | ••• | |
| ••• | 2.825" | 24.0" | 2917 fps | ••• | |
| ••• | 2.825" | 24.0" | 2961 fps | ••• | |
| ••• | 2.825" | 24.0" | 3011 fps | ••• | |
| ••• | 2.825" | 24.0" | 2777 fps | ••• | |
| ••• | 2.825" | 24.0" | 2862 fps | ••• | |
| ••• | 2.825" | 24.0" | 2902 fps | ••• | |
| ••• | 2.825" | 24.0" | 2941 fps | ••• | |
| ••• | 2.825" | 24.0" | 2730 fps | ••• | |
| ••• | 2.825" | 24.0" | 2827 fps | ••• | |
| ••• | 2.825" | 24.0" | 2881 fps | ••• | |
| ••• | 2.825" | 24.0" | 2931 fps | ••• | |
| ••• | 2.825" | 24.0" | 2655 fps | ••• | |
| ••• | 2.825" | 24.0" | 2660 fps | ••• | |
| ••• | 2.825" | 24.0" | 2753 fps | ••• | |
| ••• | 2.825" | 24.0" | 2843 fps | ••• | |
| ••• | 2.825" | 24.0" | 2886 fps | ••• | |
| ••• | 2.825" | 24.0" | 2936 fps | ••• | |
| ••• | 2.825" | 24.0" | 2807 fps | ••• | |
| ••• | 2.825" | 24.0" | 2901 fps | ••• | |
| ••• | 2.825" | 24.0" | 2990 fps | ••• | |
| ••• | 2.825" | 24.0" | 3035 fps | ••• | |
| ••• | 2.825" | 24.0" | 2698 fps | ••• | |
| ••• | 2.825" | 24.0" | 2771 fps | ••• | |
| ••• | 2.825" | 24.0" | 2855 fps | ••• | |
| ••• | 2.825" | 24.0" | 2903 fps | ••• | |
| ••• | 2.825" | 24.0" | 2960 fps | ••• | |
| ••• | 2.825" | 24.0" | 3015 fps | ••• | |
| ••• | 2.825" | 24.0" | 2600 fps | ••• | |
| ••• | 2.825" | 24.0" | 2688 fps | ••• | |
| ••• | 2.825" | 24.0" | 2772 fps | ••• | |
| ••• | 2.825" | 24.0" | 2817 fps | ••• | |
| ••• | 2.825" | 24.0" | 2857 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.