I have some 380 Auto brass with a CBC headstamp and don't remember who the manufacturer was. I was loading last night and crinkled a couple of them so I pulled them aside and double checked my notes from last session and sure enough I had the same problem then. They seemed out of spec even after running them through a full length sizer and the bullets seemed tight. I managed to get about 4 out of 100 loaded before I separated the brass. When I shot them last time, the brass came out with scrapes on it from the ejector or a different part of my pistol.
Any help would be appreciated so I don't buy that brand again.