Load data for .30-40 Krag + 175gr Sierra MatchKing
Based on C.I.P., the max. allowed case length is 2.314 in / 58.78 mm, the max. cartridge length is 3.089 in / 78.46 mm, and the max. allowed pressure is 47,137 PSI / 3,250 bar.

Based on C.I.P., the max. allowed case length is 2.314 in / 58.78 mm, the max. cartridge length is 3.089 in / 78.46 mm, and the max. allowed pressure is 47,137 PSI / 3,250 bar.

Load Specifications
ImperialMetric
Bullet:.308 | 175gr | MatchKing
Cartridge:.30-40 Krag load data
Case Length (L3):2.314" | 58.8 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.511" | 13.0 mm
Case Capacity:58 gow | 3.76 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):47,137 psi | 3,250 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:13.5
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Community Loads for .30-40 Krag + 175gr 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) |
|---|---|---|---|---|---|
| 41.0 gr | 3.089" | 22.0" | 2207 fps | ••• | |
| 43.1 gr | 3.089" | 22.0" | 2319 fps | ••• | |
| 42.2 gr | 3.089" | 22.0" | 1890 fps | ••• | |
| ••• | 3.089" | 22.0" | 2025 fps | ••• | |
| ••• | 3.089" | 22.0" | 2167 fps | ••• | |
| ••• | 3.089" | 22.0" | 2308 fps | ••• | |
| ••• | 3.089" | 22.0" | 2167 fps | ••• | |
| ••• | 3.089" | 22.0" | 2279 fps | ••• | |
| ••• | 3.089" | 22.0" | 2389 fps | ••• | |
| ••• | 3.089" | 22.0" | 2016 fps | ••• | |
| ••• | 3.089" | 22.0" | 2108 fps | ••• | |
| ••• | 3.089" | 22.0" | 2201 fps | ••• | |
| ••• | 3.089" | 22.0" | 2294 fps | ••• | |
| ••• | 3.089" | 22.0" | 2386 fps | ••• | |
| ••• | 3.089" | 22.0" | 2248 fps | ••• | |
| ••• | 3.089" | 22.0" | 2336 fps | ••• | |
| ••• | 3.089" | 22.0" | 2146 fps | ••• | |
| ••• | 3.089" | 22.0" | 2259 fps | ••• | |
| ••• | 3.089" | 22.0" | 2366 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.