Shown at SHOT show, and what looks like a joining of an AR big bore type of load with a .300 Blackout concept, is the AM-TAC .416 Hushpuppy. Looks like a cut-down .458 SOCOM or .50 Beowulf case. No headstamp image yet, just the stuff on their display at the show. Their website store does not list any loaded ammo for sale as of yet. The bottom photo shows a .223 bullet next to the .416 bullet and loaded cartridge for comparison.