I think this is entirely a packaging issue. Brass is soft on one end and hard on the other, and when they get banged around they bump into each other and the soft case mouths get bent and dinged. I got some Norma brass a while back from Midway, and they were in boxes of 25 that had enough room for twice that many cases. None were damaged, but that is a bit surprising to me. There was plenty of room for them to have damaged each other, but they didn't. They must have had an easy ride getting to my mailbox.