Load data for .300 Rem. SA Ultra Mag. + 168gr Sierra 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
Bullet:.308 | 168gr | MatchKing
Cartridge:.300 Rem. SA Ultra Mag. load data
Case Length (L3):2.003" | 50.9 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.458" | 11.6 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:1:13.5
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Community Loads for .300 Rem. SA Ultra Mag. + 168gr Sierra 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) |
|---|---|---|---|---|---|
| 51.0 gr | 2.825" | 24.0" | 2673 fps | ••• | |
| 52.3 gr | 2.825" | 24.0" | 2729 fps | ••• | |
| 53.5 gr | 2.825" | 24.0" | 2781 fps | ••• | |
| ••• | 2.825" | 24.0" | 2826 fps | ••• | |
| ••• | 2.825" | 24.0" | 2868 fps | ••• | |
| ••• | 2.825" | 24.0" | 2709 fps | ••• | |
| ••• | 2.825" | 24.0" | 2754 fps | ••• | |
| ••• | 2.825" | 24.0" | 2799 fps | ••• | |
| ••• | 2.825" | 24.0" | 2843 fps | ••• | |
| ••• | 2.825" | 24.0" | 2883 fps | ••• | |
| ••• | 2.825" | 24.0" | 2579 fps | ••• | |
| ••• | 2.825" | 24.0" | 2678 fps | ••• | |
| ••• | 2.825" | 24.0" | 2724 fps | ••• | |
| ••• | 2.825" | 24.0" | 2762 fps | ••• | |
| ••• | 2.825" | 24.0" | 2798 fps | ••• | |
| ••• | 2.825" | 24.0" | 2835 fps | ••• | |
| ••• | 2.825" | 24.0" | 2559 fps | ••• | |
| ••• | 2.825" | 24.0" | 2604 fps | ••• | |
| ••• | 2.825" | 24.0" | 2659 fps | ••• | |
| ••• | 2.825" | 24.0" | 2714 fps | ••• | |
| ••• | 2.825" | 24.0" | 2773 fps | ••• | |
| ••• | 2.825" | 24.0" | 2693 fps | ••• | |
| ••• | 2.825" | 24.0" | 2734 fps | ••• | |
| ••• | 2.825" | 24.0" | 2777 fps | ••• | |
| ••• | 2.825" | 24.0" | 2821 fps | ••• | |
| ••• | 2.825" | 24.0" | 2680 fps | ••• | |
| ••• | 2.825" | 24.0" | 2726 fps | ••• | |
| ••• | 2.825" | 24.0" | 2775 fps | ••• | |
| ••• | 2.825" | 24.0" | 2829 fps | ••• | |
| ••• | 2.825" | 24.0" | 2517 fps | ••• | |
| ••• | 2.825" | 24.0" | 2628 fps | ••• | |
| ••• | 2.825" | 24.0" | 2679 fps | ••• | |
| ••• | 2.825" | 24.0" | 2726 fps | ••• | |
| ••• | 2.825" | 24.0" | 2765 fps | ••• | |
| ••• | 2.825" | 24.0" | 2802 fps | ••• | |
| ••• | 2.825" | 24.0" | 2757 fps | ••• | |
| ••• | 2.825" | 24.0" | 2803 fps | ••• | |
| ••• | 2.825" | 24.0" | 2849 fps | ••• | |
| ••• | 2.825" | 24.0" | 2891 fps | ••• | |
| ••• | 2.825" | 24.0" | 2932 fps | ••• | |
| ••• | 2.825" | 24.0" | 2634 fps | ••• | |
| ••• | 2.825" | 24.0" | 2688 fps | ••• | |
| ••• | 2.825" | 24.0" | 2744 fps | ••• | |
| ••• | 2.825" | 24.0" | 2798 fps | ••• | |
| ••• | 2.825" | 24.0" | 2854 fps | ••• | |
| ••• | 2.825" | 24.0" | 2583 fps | ••• | |
| ••• | 2.825" | 24.0" | 2624 fps | ••• | |
| ••• | 2.825" | 24.0" | 2667 fps | ••• | |
| ••• | 2.825" | 24.0" | 2709 fps | ••• | |
| ••• | 2.825" | 24.0" | 2747 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.