Could someone please point me to a source that specifically points out the differences between the .30 Mauser and the 7.62x25 ? A friend looking through his 2003 Shooter's Bible pointed out an article that indicated the 7.62x25 was also known as (not mistaken for) the .30 Mauser. I was always under the impression they were similar in dimensions but not the same cartridge. After pointing out the mistake by the author, my buddy just looked at me as if I were speaking in latin. Thanks in advance.