Ejection print ALWAYS pressure sign?

Was this action originally a .223 or something similar with a smaller case?

If so, the ejector mark is due to the ejector being in the unsupported portion of the case head, where there used to be no internal pressure, if that makes sense. Typicaly, action mfgrs don't place the ejector to touch nearly that much of the base of the case.

Ie, ejector is too far inboard in the bolt face. I'd just live with it and go find the load that shoots using other indicators of pressure cause this one is false.
 
For me the rings you show are not troubling.

If you have a bright patch on the base of each case, showing extrusion of the brass into the ejector recess, then you have a clear example of excessive pressure.

I don't see anything like that.
 
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