Load data for 8.6 mm Blackout + 300gr Sierra HPBT LR MatchKing
410 suitable loads across 87 powder(s) for cartridge 8.6 mm Blackout with 300gr Sierra HPBT LR MatchKing bullet.
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
Cartridge:8.6 mm Blackout load data
Case Length (L3):1.685" | 42.8 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.773" | 19.6 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:1:12.0
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