I looked closely at the pics and am not sure that overpressure is really the culprit here. How do the cases measure? If the bases are not expanded badly, which (by the pics anyhow) they don't appear to be, they might be OK.
Having ruined my share of 9MM brass with overpressure, these don't look anything like the buldged horrors I have made in the past.
Could this not be caused by a firing pin being too sharp and piercing the primer? And, this would allow the primer to flow excessively into the FP hole which appears to have happened on several cases.
Also, look at the edges of the primers....still rounded. Almost no flattening at all. My overpressure experiences have had the primers flowed out sharp to the edge of the pocket and never blew one out. Just wondering.....