Twice? Four or five times, I'd say. Heck the ball is more'n three times as heavy as a standard 5.56. And a gigantic load of powder pushing it.
The Garand was overpowered, and the U.S. seriously debated going to a .308 (7.62x51). Reason they stuck with the .30.06 (7.62x63) is that the entire...