Big Horn Armory 500 Automax Review Field Artillery Support

I’ve known about Big Horn Armory out of Cody, Wyoming, for a long time. From the moment they hit the scene, I fell in love with their big-bore lever-action rifles. They made a massive splash in the firearms world by building rugged, hard-hitting lever guns chambered in .500 S&W Magnum and .460 S&W Magnum—cartridges previously unheard of in a lever-action platform.

But Big Horn Armory wasn’t content with just rewriting the rules for lever actions. They decided to take things even further and do something no one else had done: build a semi-automatic rifle chambered in .500 S&W. Thus, the AR500 was born, along with its companion cartridge, the .500 Auto Max—a rimless, straight-walled version of the legendary .500 S&W Magnum, purpose-built for use in an AR-style rifle.

And let me tell you, this is no gimmick. This rifle puts half-inch holes in tight, respectable groups at 100 yards. It’s not just a showpiece—it’s a serious performer. This, right here, is why I love Big Horn Armory: their “can-do” spirit, their fearless innovation, and their unwavering commitment to everything big bore. Pushing the envelope while keeping safety first might as well be their motto—or maybe it’s “field artillery