Load data for .338 RCM + 185gr Barnes TSX BT
Based on C.I.P., the max. allowed case length is 2.015 in / 51.18 mm, the max. cartridge length is 2.840 in / 72.14 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.

Based on C.I.P., the max. allowed case length is 2.015 in / 51.18 mm, the max. cartridge length is 2.840 in / 72.14 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.

Load Specifications
ImperialMetric
Bullet:.338 | 185gr | TSX BT
Cartridge:.338 RCM load data
Case Length (L3):2.000" | 50.8 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.548" | 13.9 mm
Case Capacity:71 gow | 4.60 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):62,366 psi | 4,300 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:13.0
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Community Loads for .338 RCM + 185gr Barnes TSX 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) |
|---|---|---|---|---|---|
| 55.0 gr | 2.800" | 24.0" | 2680 fps | ••• | |
| 49.0 gr | 2.800" | 24.0" | 2543 fps | ••• | |
| 54.4 gr | 2.800" | 24.0" | 2776 fps | ••• | |
| ••• | 2.800" | 24.0" | 2583 fps | ••• | |
| ••• | 2.800" | 24.0" | 2801 fps | ••• | |
| ••• | 2.800" | 24.0" | 2594 fps | ••• | |
| ••• | 2.800" | 24.0" | 2862 fps | ••• | |
| ••• | 2.800" | 24.0" | 2486 fps | ••• | |
| ••• | 2.800" | 24.0" | 2737 fps | ••• | |
| ••• | 2.800" | 24.0" | 2517 fps | ••• | |
| ••• | 2.800" | 24.0" | 2753 fps | ••• | |
| ••• | 2.800" | 24.0" | 2477 fps | ••• | |
| ••• | 2.800" | 24.0" | 2778 fps | ••• | |
| ••• | 2.800" | 24.0" | 2647 fps | ••• | |
| ••• | 2.800" | 24.0" | 2791 fps | ••• | |
| ••• | 2.800" | 24.0" | 2700 fps | ••• | |
| ••• | 2.800" | 24.0" | 2943 fps | ••• | |
| ••• | 2.800" | 24.0" | 2459 fps | ••• | |
| ••• | 2.800" | 24.0" | 2738 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.