Load data for 8 x 57 IS + 139gr Geco ZERO
Based on C.I.P., the max. allowed case length is 2.244 in / 57.00 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 2.244 in / 57.00 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:.323 | 139gr | ZERO
Cartridge:8 x 57 IS load data
Case Length (L3):2.244" | 57.0 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.323" | 8.2 mm
Case Capacity:63 gow | 4.08 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:1:14.5
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Community Loads for 8 x 57 IS + 139gr Geco ZERO
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) |
|---|---|---|---|---|---|
| 45.0 gr | 3.110" | 22.4" | 2753 fps | ••• | |
| 45.0 gr | 3.180" | 22.4" | 2730 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.