This guide details troubleshooting bullet stabilization issues with .300 Blackout subsonic loads, specifically using 220gr Nosler Ballistic Tip bullets. It covers critical steps from measuring OAL and selecting appropriate powders like Hodgdon CFE BLK to diagnosing keyholing and analyzing bullet performance in ballistic gel. The expert instruction emphasizes methodical testing and component selection for achieving reliable results, even when initial attempts fail.
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