So, thank you @BRADS, @ebf, @7mmsaum and all of you guys who reply to my question.
No, the vertical marks in the neck is not bothering me at all, it happen just/only this time during e "neck sizing" process, what I am more concerned is about the "ring" mark going around the neck and shoulder area, that sounds very "odd" to me.
No, I haven't changed my reloading routine at all, regards all the feed backs you guys gave me, I just fired the last 8 rounds from the same reload batch so I will clean it up and do the thing and check if any difference/alteration in these brass.
Thank you a lot once again, I will keep you guys posted about this experience(incident).
Mac
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