That is very interesting & somewhat disappointing. It's unfortunate that you don't have any more CEB's to test. I would like to see more of a test than what we have here. The preliminary results are definitely unsatisfactory but I don't think i'm being unfare when I use the word inconclusive in the same breath.
I wouldn't think the 130's I use would be constructed differently.... Was there any expansion testing at closer ranges? My thought on the steel plate test is that the bullet actually started expanding sooner than the Berger or Matrix explaining your results.
If my rifle would stabilize them I wouldn't be hesitant to test more, call me curious.
How much velocity different between the CEB & Berger?
Your results really do get my wheels turning