Can anyone give an opinion on this brass? I came home from a range trip with more brass than I shot. I only shoot my reloads and have never seen or used AAC stamped brass. I don’t know if this was once fired or someone else reloaded them and I was able to pick them up. These 3 are pretty badly cracked as seen in the picture. I checked the others I picked up and had about 35 more that were not cracked and fine. In all the years I’ve been reloading I’ve never come across this many of the same headstamp cracked in one group. Has anyone else see this problem before?