Load data for .300 Rem. SA Ultra Mag. + 165gr Sierra SBT GameKing
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 | 165gr | SBT GameKing
Cartridge:.300 Rem. SA Ultra Mag. load data
Case Length (L3):2.003" | 50.9 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.389" | 9.9 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. + 165gr Sierra SBT GameKing
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) |
|---|---|---|---|---|---|
| 58.7 gr | 2.800" | 24.0" | 2837 fps | ••• | |
| 53.6 gr | 2.800" | 24.0" | 2780 fps | ••• | |
| 51.0 gr | 2.825" | 24.0" | 2677 fps | ••• | |
| ••• | 2.825" | 24.0" | 2732 fps | ••• | |
| ••• | 2.825" | 24.0" | 2784 fps | ••• | |
| ••• | 2.825" | 24.0" | 2831 fps | ••• | |
| ••• | 2.825" | 24.0" | 2873 fps | ••• | |
| ••• | 2.825" | 24.0" | 2709 fps | ••• | |
| ••• | 2.825" | 24.0" | 2755 fps | ••• | |
| ••• | 2.825" | 24.0" | 2800 fps | ••• | |
| ••• | 2.825" | 24.0" | 2845 fps | ••• | |
| ••• | 2.825" | 24.0" | 2885 fps | ••• | |
| ••• | 2.825" | 24.0" | 2578 fps | ••• | |
| ••• | 2.825" | 24.0" | 2679 fps | ••• | |
| ••• | 2.825" | 24.0" | 2723 fps | ••• | |
| ••• | 2.825" | 24.0" | 2764 fps | ••• | |
| ••• | 2.825" | 24.0" | 2800 fps | ••• | |
| ••• | 2.825" | 24.0" | 2835 fps | ••• | |
| ••• | 2.825" | 24.0" | 2655 fps | ••• | |
| ••• | 2.825" | 24.0" | 2711 fps | ••• | |
| ••• | 2.825" | 24.0" | 2770 fps | ••• | |
| ••• | 2.825" | 24.0" | 2740 fps | ••• | |
| ••• | 2.825" | 24.0" | 2783 fps | ••• | |
| ••• | 2.825" | 24.0" | 2828 fps | ••• | |
| ••• | 2.825" | 24.0" | 2686 fps | ••• | |
| ••• | 2.825" | 24.0" | 2732 fps | ••• | |
| ••• | 2.825" | 24.0" | 2782 fps | ••• | |
| ••• | 2.825" | 24.0" | 2836 fps | ••• | |
| ••• | 2.825" | 24.0" | 2518 fps | ••• | |
| ••• | 2.825" | 24.0" | 2629 fps | ••• | |
| ••• | 2.825" | 24.0" | 2681 fps | ••• | |
| ••• | 2.825" | 24.0" | 2726 fps | ••• | |
| ••• | 2.825" | 24.0" | 2765 fps | ••• | |
| ••• | 2.825" | 24.0" | 2804 fps | ••• | |
| ••• | 2.825" | 24.0" | 2760 fps | ••• | |
| ••• | 2.825" | 24.0" | 2806 fps | ••• | |
| ••• | 2.825" | 24.0" | 2852 fps | ••• | |
| ••• | 2.825" | 24.0" | 2895 fps | ••• | |
| ••• | 2.825" | 24.0" | 2936 fps | ••• | |
| ••• | 2.825" | 24.0" | 2637 fps | ••• | |
| ••• | 2.825" | 24.0" | 2691 fps | ••• | |
| ••• | 2.825" | 24.0" | 2747 fps | ••• | |
| ••• | 2.825" | 24.0" | 2800 fps | ••• | |
| ••• | 2.825" | 24.0" | 2859 fps | ••• | |
| ••• | 2.825" | 24.0" | 2912 fps | ••• | |
| ••• | 2.825" | 24.0" | 2588 fps | ••• | |
| ••• | 2.825" | 24.0" | 2632 fps | ••• | |
| ••• | 2.825" | 24.0" | 2674 fps | ••• | |
| ••• | 2.825" | 24.0" | 2716 fps | ••• | |
| ••• | 2.825" | 24.0" | 2754 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.