Load data for .243 WSSM + 90gr Speer Hot-Cor
Based on C.I.P., the max. allowed case length is 1.670 in / 42.42 mm, the max. cartridge length is 2.360 in / 59.94 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 1.670 in / 42.42 mm, the max. cartridge length is 2.360 in / 59.94 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications
ImperialMetric
Bullet:.243 | 90gr | Hot-Cor
Cartridge:.243 WSSM load data
Case Length (L3):1.663" | 42.2 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.241" | 6.1 mm
Case Capacity:53.9 gow | 3.49 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:11.5
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Community Loads for .243 WSSM + 90gr Speer Hot-Cor
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 | 2.360" | — | 2939 fps | ••• | |
| 43.0 gr | 2.360" | — | 3071 fps | ••• | |
| 43.0 gr | 2.360" | — | 2903 fps | ••• | |
| ••• | 2.360" | — | 3034 fps | ••• | |
| ••• | 2.360" | — | 2920 fps | ••• | |
| ••• | 2.360" | — | 3051 fps | ••• | |
| ••• | 2.360" | — | 2949 fps | ••• | |
| ••• | 2.360" | — | 3094 fps | ••• | |
| ••• | 2.360" | — | 2886 fps | ••• | |
| ••• | 2.360" | — | 3017 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.