There are longitudinal scratches and nicks on the case heads.
Those scratches are caused when cycling the rounds from the magazine lips during feeding and are common. I agree that it appears extractor is not seated properly and likely needs to be replaced. If removed, they should not be re-installed.
[ame]http://www.youtube.com/watch?v=5jG-rkGjc_k&feature=youtube_gdata_player[/ame]
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