If there is one standard handbook for cartridge collectors as well as for "everyday" users, this one should be named foremost. It covers a very large range of current and obsolete cartridge both from the metric and the "imperial" (read: British and American) measurement systems, civilian and military alike. A number of the better-known wildcat and proprietary cartridges are also treated. Almost all cartridges are illustrated (though mostly not with measurements, which are confined to some cumbersome tables at the end of the chapters). While this book is not "the bible" and still contains many (often just minor) errors and inaccuracies, it is infinitely useful, and the well-known new editor, M.L. McPherson, has already made improvements over the previous (7th) edition. I strongly recommend this book as a "must buy" for even a very small firearms reference library - you will end up using it daily.