Folks, We're having a not-so-friendly argument in the office about .284 case capacity. My friend says that the .284 case capacity compares to a .308. I say nonsense, that it compares to a '06. I cited a comparison (based on my Lyman manual, from my desk) to a .280 and a 7-08 w/the powder capacity, of IMR4350, when using a 139 grainer. He says that the case capacity, w/powder, when seating a bullet on it, doesn't relate to actual case capacity. What is correct?