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"...for the 722 or 725 standard bolt face..." A 722 or 725 what? Remington? The 722 hasn't been made since 1959. The 725 since 1961. In any case, the calibre matters. A .222 extractor won't work in a .308 based case.
Go here and rummage around. http://www.remington.com/support/repair_services/specialty_parts_dealers.asp
