I reread the original article and realized that these changes occured a few years ago. Since the changes were originally to the .280 remington and just carried over to the 280AI my measurements would have no bearing on this discussion as my .280 -.004 go gauge is pretty recent vintage, and my reamer while older than my gauge probably should meet the specs also.
I do not have a .280AI that would be effected, so there may be a problem, I cannot say. I would guess that if someone could figure when the changes tot he .280 remington were made an idea of the vintage of affected rifles could be determined.
