Was wondering the same thing you are Dave
I have a 6mmBR that I done the same thing to--snug go gauge
I had to modify the shellholder to get the redding body die to set the shoulder back far enough to not get a stiff bolt up with the sized brass
After thinking on it for a while I have since started giving my new barrels a little more on the go gauge, no go gauge is still good
Not talking about a lot but as Sharpshooter said a little room is good
Jack