Load data for .50 BMG + 647gr Barnes TSX FB
Based on C.I.P., the max. allowed case length is 3.910 in / 99.31 mm, the max. cartridge length is 5.450 in / 138.43 mm, and the max. allowed pressure is 53,664 PSI / 3,700 bar.

Based on C.I.P., the max. allowed case length is 3.910 in / 99.31 mm, the max. cartridge length is 5.450 in / 138.43 mm, and the max. allowed pressure is 53,664 PSI / 3,700 bar.

Load Specifications
ImperialMetric
Bullet:.509 | 647gr | TSX FB
Cartridge:.50 BMG load data
Case Length (L3):3.900" | 99.1 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.587" | 14.9 mm
Case Capacity:300 gow | 19.44 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):53,664 psi | 3,700 bar
Barrel Length:29.0" | 737 mm
Min. Twist Rate:1:22.5
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Community Loads for .50 BMG + 647gr Barnes TSX FB
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) |
|---|---|---|---|---|---|
| 200.0 gr | 5.205" | 32.0" | 2575 fps | ••• | |
| 212.0 gr | 5.205" | 32.0" | 2692 fps | ••• | |
| 232.0 gr | 5.205" | 32.0" | 2672 fps | ••• | |
| ••• | 5.205" | 32.0" | 2836 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.