Load data for .243 WSSM + 75gr Speer Varmint Hollow Point
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
Cartridge:.243 WSSM load data
Case Length (L3):1.663" | 42.2 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.293" | 7.4 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:1:12.5
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Community Loads for .243 WSSM + 75gr Speer Varmint Hollow Point
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) |
|---|---|---|---|---|---|
| 37.5 gr | 2.185" | — | 3072 fps | ••• | |
| 39.5 gr | 2.185" | — | 3204 fps | ••• | |
| 45.0 gr | 2.185" | — | 3308 fps | ••• | |
| ••• | 2.185" | — | 3456 fps | ••• | |
| ••• | 2.185" | — | 3172 fps | ••• | |
| ••• | 2.185" | 24.0" | 3308 fps | ••• | |
| ••• | 2.185" | — | 3296 fps | ••• | |
| ••• | 2.185" | 24.0" | 3435 fps | ••• | |
| ••• | 2.185" | — | 3282 fps | ••• | |
| ••• | 2.185" | — | 3425 fps | ••• | |
| ••• | 2.185" | — | 3221 fps | ••• | |
| ••• | 2.185" | — | 3353 fps | ••• | |
| ••• | 2.185" | — | 3215 fps | ••• | |
| ••• | 2.185" | — | 3348 fps | ••• | |
| ••• | 2.185" | — | 3175 fps | ••• | |
| ••• | 2.185" | — | 3314 fps | ••• | |
| ••• | 2.185" | — | 3269 fps | ••• | |
| ••• | 2.185" | — | 3401 fps | ••• | |
| ••• | 2.185" | — | 3251 fps | ••• | |
| ••• | 2.185" | — | 3318 fps | ••• | |
| ••• | 2.185" | — | 3460 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.