ICFRA FTR chamber spec rules limits the dimensions of the chamber to the maximum dimensions prescribed by SAAMI (and CIP). From previous threads on this forum, it is clear that smaller dimensions on the neck, web or throat (that is not smaller than the bullet diameter) is not a concern. Am I correct in assuming this establishes the intent/spirit of the rule: that is to prohibit an "improved" chamber with greater case capacity? Or am I missing something else? Please enlighten me.