This YouTube video focuses on the performance testing of 190gr Hornady SUB-X ammunition in .300 Blackout (300 BLK). It specifically examines the use of Vihtavuori N120 and Accurate 1680 powders with this bullet. Additionally, the video mentions testing of 220gr Hornady ELD-X and 220gr Nosler Ballistic Tip Subsonic ammunition, suggesting a broader look at subsonic .300 Blackout options. The inclusion of a Patreon link indicates the creator is seeking community support for their reloading and firearm content.
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