Reference: [http://http://www.weaponevolution.com/forum/showthread.php?p=16968#post16968

The bolt assembly, emphasis on the ejector, pictured in this thread appears to be "out of spec". The face of the ejector should rest at or just below the face of the bolt. While there is no official specification for the relationship between the two (bolt face to ejector face), we can back into this conclusion because we know:

1. ejector dimensions
2. ejector cavity depth
3. ejector pin location

Any of these, or a combination of them, being out of spec may be the cause of what we see in the photo in the thread above. While a rough ejector face will cause brass shavings, the extractor snapping over the rim of the case is the primary cause of the shavings. While we don't recommend altering your ejector face, it would be a good idea to make sure it remains square to limit any unintended consequences.

- Danger Close