Load data for .300 Rem. SA Ultra Mag. + 125gr Sierra SPT Pro-Hunter
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:0.308" | 7.8 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:Stabilizes in any common twist
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Community Loads for .300 Rem. SA Ultra Mag. + 125gr Sierra SPT Pro-Hunter
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) |
|---|---|---|---|---|---|
| 54.2 gr | 2.825" | 24.0" | 2877 fps | ••• | |
| 56.2 gr | 2.825" | 24.0" | 2970 fps | ••• | |
| 58.0 gr | 2.825" | 24.0" | 3053 fps | ••• | |
| ••• | 2.825" | 24.0" | 3090 fps | ••• | |
| ••• | 2.825" | 24.0" | 3123 fps | ••• | |
| ••• | 2.825" | 24.0" | 2783 fps | ••• | |
| ••• | 2.825" | 24.0" | 2857 fps | ••• | |
| ••• | 2.825" | 24.0" | 2937 fps | ••• | |
| ••• | 2.825" | 24.0" | 2908 fps | ••• | |
| ••• | 2.825" | 24.0" | 3011 fps | ••• | |
| ••• | 2.825" | 24.0" | 3112 fps | ••• | |
| ••• | 2.825" | 24.0" | 3167 fps | ••• | |
| ••• | 2.825" | 24.0" | 3219 fps | ••• | |
| ••• | 2.825" | 24.0" | 2967 fps | ••• | |
| ••• | 2.825" | 24.0" | 3052 fps | ••• | |
| ••• | 2.825" | 24.0" | 3098 fps | ••• | |
| ••• | 2.825" | 24.0" | 3139 fps | ••• | |
| ••• | 2.825" | 24.0" | 3177 fps | ••• | |
| ••• | 2.825" | 24.0" | 3071 fps | ••• | |
| ••• | 2.825" | 24.0" | 2920 fps | ••• | |
| ••• | 2.825" | 24.0" | 2996 fps | ••• | |
| ••• | 2.825" | 24.0" | 3076 fps | ••• | |
| ••• | 2.825" | 24.0" | 3171 fps | ••• | |
| ••• | 2.825" | 24.0" | 3221 fps | ••• | |
| ••• | 2.825" | 24.0" | 2932 fps | ••• | |
| ••• | 2.825" | 24.0" | 3029 fps | ••• | |
| ••• | 2.825" | 24.0" | 3084 fps | ••• | |
| ••• | 2.825" | 24.0" | 3142 fps | ••• | |
| ••• | 2.825" | 24.0" | 3207 fps | ••• | |
| ••• | 2.825" | 24.0" | 2839 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.