When asked why AAC went with .300 AAC Blackout instead of .300 Whisper, Silver said “.300 Whisper is not SAAMI-approved and SAAMI will not accept trademarked cartridge names.

Our hunting editor tested and picked the best 300 Blackout ammo for hunting, whether you're after hogs, deer, or even black bears.

Building on the .45 Colt/.410 bore Brawler introduced in 2024, Rossi USA is expanding its line of break-action handguns to include chamberings in 5.56 NATO and .300 Blackout.