Load data for 8.6 mm Blackout + 285gr Barnes TSX BT
Based on SAAMI, the max. allowed case length is 1.685 in / 42.80 mm, the max. cartridge length is 2.825 in / 71.75 mm, and the max. allowed pressure is 61,999 PSI / 4,275 bar.

Based on SAAMI, the max. allowed case length is 1.685 in / 42.80 mm, the max. cartridge length is 2.825 in / 71.75 mm, and the max. allowed pressure is 61,999 PSI / 4,275 bar.

Load Specifications
ImperialMetric
Bullet:.338 | 285gr | TSX BT
Cartridge:8.6 mm Blackout load data
Case Length (L3):1.685" | 42.8 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.855" | 21.7 mm
Case Capacity:50 gow | 3.24 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (SAAMI):61,999 psi | 4,275 bar
Barrel Length:16.0" | 406 mm
Min. Twist Rate:1:10.0
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Community Loads for 8.6 mm Blackout + 285gr 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) |
|---|---|---|---|---|---|
| 9.5 gr | 2.825" | 16.0" | 988 fps | ••• | |
| 10.0 gr | 2.825" | 16.0" | 1020 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.