Load data for 7.5 x 55 Swiss + 125gr Sierra SPT Pro-Hunter
Based on C.I.P., the max. allowed case length is 2.189 in / 55.60 mm, the max. cartridge length is 3.059 in / 77.70 mm, and the max. allowed pressure is 55,114 PSI / 3,800 bar.
Based on C.I.P., the max. allowed case length is 2.189 in / 55.60 mm, the max. cartridge length is 3.059 in / 77.70 mm, and the max. allowed pressure is 55,114 PSI / 3,800 bar.
Load Specifications
ImperialMetric
Cartridge:7.5 x 55 Swiss load data
Case Length (L3):2.188" | 55.6 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.278" | 7.1 mm
Case Capacity:65 gow | 4.21 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):55,114 psi | 3,800 bar
Barrel Length:31.0" | 787 mm
Min. Twist Rate:Stabilizes in any common twist
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Community Loads for 7.5 x 55 Swiss + 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) |
|---|---|---|---|---|---|
| 47.0 gr | 2.800" | 31.0" | 2452 fps | ••• | |
| 51.0 gr | 2.800" | 31.0" | 2666 fps | ••• | |
| 46.0 gr | 2.800" | 31.0" | 2729 fps | ••• | |
| ••• | 2.800" | 31.0" | 2538 fps | ••• | |
| ••• | 2.800" | 31.0" | 2646 fps | ••• | |
| ••• | 2.800" | 31.0" | 2682 fps | ••• | |
| ••• | 2.800" | 31.0" | 2893 fps | ••• | |
| ••• | 3.059" | 30.7" | 2776 fps | ••• | |
| ••• | 3.059" | 30.7" | 2834 fps | ••• | |
| ••• | 3.059" | 30.7" | 2766 fps | ••• | |
| ••• | 3.059" | 30.7" | 2840 fps | ••• | |
| ••• | 3.059" | 30.7" | 2911 fps | ••• | |
| ••• | 3.059" | 30.7" | 2976 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.