Brass, paper or Plastic, they all fit chambers having the same dimensions.
They do not of course all have the same thickness of walls, so predominately the "Interiors" change. Of course if you measure a big enough pile of the different "New" shells you will find variance of actual size among them all due to manufacturing tolerances. I would feel likely you would find some of "Each" type which were bigger than some of the other types.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra