Load data for .300 WSM + 180gr Barnes TTSX BT
The most recommended powders for this combination are Vihtavuori N540, Vihtavuori N550 and Hodgdon Superformance.
Based on C.I.P., the max. allowed case length is 2.100 in / 53.34 mm, the max. cartridge length is 2.860 in / 72.64 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 2.100 in / 53.34 mm, the max. cartridge length is 2.860 in / 72.64 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications
ImperialMetric
Bullet:.308 | 180gr | TTSX BT
Cartridge:.300 WSM load data
Case Length (L3):2.090" | 53.1 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.652" | 16.6 mm
Case Capacity:81.3 gow | 5.27 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:24.0" | 610 mm
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Community Loads for .300 WSM + 180gr Barnes TTSX BT
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) |
|---|---|---|---|---|---|
| 59.0 gr | 2.860" | 24.0" | 2774 fps | ••• | |
| 58.0 gr | 2.860" | 24.0" | 2838 fps | ••• | |
| 59.4 gr | 2.860" | 24.0" | 2782 fps | ••• | |
| ••• | 2.860" | 24.0" | 2985 fps | ••• | |
| ••• | 2.860" | 20.0" | 2674 fps | ••• | |
| ••• | 2.860" | 20.0" | 2910 fps | ••• | |
| ••• | 2.860" | 24.0" | 2790 fps | ••• | |
| ••• | 2.860" | 24.0" | 2782 fps | ••• | |
| ••• | 2.860" | 24.0" | 2769 fps | ••• | |
| ••• | 2.860" | 24.3" | 2841 fps | ••• | |
| ••• | 2.860" | 24.3" | 2923 fps | ••• | |
| ••• | 2.860" | 24.0" | 2761 fps | ••• | |
| ••• | 2.860" | 24.0" | 2732 fps | ••• | |
| ••• | 2.860" | 24.0" | 2842 fps | ••• | |
| ••• | 2.846" | 24.5" | 2613 fps | ••• | |
| ••• | 2.860" | 22.8" | 2730 fps | ••• | |
| ••• | 2.846" | 24.5" | 2576 fps | ••• | |
| ••• | 2.860" | 22.8" | 2861 fps | ••• | |
| ••• | 2.846" | 24.5" | 2485 fps | ••• | |
| ••• | 2.846" | 24.5" | 2707 fps | ••• | |
| ••• | 2.846" | 24.5" | 2603 fps | ••• | |
| ••• | 2.846" | 24.5" | 2847 fps | ••• | |
| ••• | 2.860" | 24.0" | 2752 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.