Host Seth Swerczek is joined by Miles Neville and Preston Lentfer to explore the history, evolution, and enduring popularity of the 6mm (.243") caliber. From the groundbreaking 6mm Lee Navy and 243 Winchester to modern favorites like the 6 ARC, 6 Creedmoor, and beyond, the crew breaks down why the 6mm family has remained a favorite for hunters, competitors, and shooters for more than a century—and debates whether it truly is the best all-around caliber.