Load data for .25 WYB RPM + 107gr Hammer HBC
The most recommended powders for this combination are Accurate High Country.
Based on SAAMI, the max. allowed case length is 2.400 in / 60.96 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 65,000 PSI / 4,482 bar.
Based on SAAMI, the max. allowed case length is 2.400 in / 60.96 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 65,000 PSI / 4,482 bar.
Load Specifications
ImperialMetric
Bullet:.257 | 107gr | HBC
Cartridge:.25 WYB RPM load data
Case Length (L3):2.400" | 61.0 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.500" | 12.7 mm
Case Capacity:72.5 gow | 4.70 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (SAAMI):65,000 psi | 4,482 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:7.5
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Community Loads for .25 WYB RPM + 107gr Hammer HBC
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) |
|---|---|---|---|---|---|
| 63.2 gr | 3.340" | 24.0" | 3396 fps | ••• | |
| 63.3 gr | 3.340" | 24.0" | 3402 fps | ••• | |
| 64.5 gr | 3.340" | 24.0" | 3373 fps | ••• | |
| ••• | 3.340" | 24.0" | 3386 fps | ••• | |
| ••• | 3.340" | 24.0" | 3402 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.