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Message: <blockquote data-quote="Jcann" data-source="post: 2984633" data-attributes="member: 33119">I'm completely lost as to why you need to insert the brass into the chamber in the same exact position as you fired it. Please enlighten me as to why this would need to be done.When you fire your rifle the brass generally flows forward and expands to seal the chamber. Once the brass cools there is a slight shrinkage. What is it in this process that would say, in order to set your bullet seating depth you must insert your brass in the same position it was fired? All you're doing in this process is, matching more closely the brass to your specific chamber.</blockquote>