Load data for .300 AAC Blackout + 155gr Sierra MatchKing
Based on C.I.P., the max. allowed case length is 1.368 in / 34.75 mm, the max. cartridge length is 2.260 in / 57.40 mm, and the max. allowed pressure is 50,763 PSI / 3,500 bar.
Based on C.I.P., the max. allowed case length is 1.368 in / 34.75 mm, the max. cartridge length is 2.260 in / 57.40 mm, and the max. allowed pressure is 50,763 PSI / 3,500 bar.
Load Specifications
ImperialMetric
Bullet:.308 | 155gr | MatchKing
Cartridge:.300 AAC Blackout load data
Case Length (L3):1.367" | 34.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.307" | 7.8 mm
Case Capacity:25.1 gow | 1.63 cm³
Primer Size:Small Rifle (SR)
Max. Pressure (C.I.P.):50,763 psi | 3,500 bar
Barrel Length:16.0" | 406 mm
Min. Twist Rate:1:14.5
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Community Loads for .300 AAC Blackout + 155gr Sierra MatchKing
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) |
|---|---|---|---|---|---|
| 18.6 gr | 2.190" | 16.0" | 1742 fps | ••• | |
| 15.9 gr | 2.190" | 16.0" | 1858 fps | ••• | |
| 16.4 gr | 2.190" | 16.0" | 1785 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.