Load data for 6.5 x 57 + 142gr Sierra MatchKing
Based on C.I.P., the max. allowed case length is 2.232 in / 56.70 mm, the max. cartridge length is 3.228 in / 82.00 mm, and the max. allowed pressure is 56,565 PSI / 3,900 bar.
Based on C.I.P., the max. allowed case length is 2.232 in / 56.70 mm, the max. cartridge length is 3.228 in / 82.00 mm, and the max. allowed pressure is 56,565 PSI / 3,900 bar.
Load Specifications
ImperialMetric
Bullet:.264 | 142gr | MatchKing
Cartridge:6.5 x 57 load data
Case Length (L3):2.232" | 56.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.454" | 11.5 mm
Case Capacity:59 gow | 3.82 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):56,565 psi | 3,900 bar
Barrel Length:23.6" | 600 mm
Min. Twist Rate:1:8.5
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Community Loads for 6.5 x 57 + 142gr 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) |
|---|---|---|---|---|---|
| 40.5 gr | 3.228" | 26.0" | 2534 fps | ••• | |
| 42.6 gr | 3.228" | 26.0" | 2645 fps | ••• | |
| 44.7 gr | 3.228" | 26.0" | 2755 fps | ••• | |
| ••• | 3.228" | 26.0" | 2415 fps | ••• | |
| ••• | 3.228" | 26.0" | 2523 fps | ••• | |
| ••• | 3.228" | 26.0" | 2340 fps | ••• | |
| ••• | 3.228" | 26.0" | 2451 fps | ••• | |
| ••• | 3.228" | 26.0" | 2561 fps | ••• | |
| ••• | 3.228" | 26.0" | 2528 fps | ••• | |
| ••• | 3.228" | 26.0" | 2620 fps | ••• | |
| ••• | 3.228" | 26.0" | 2527 fps | ••• | |
| ••• | 3.228" | 26.0" | 2603 fps | ••• | |
| ••• | 3.228" | 26.0" | 2677 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.