IMHO COTW was updated and expanded, but mostly the sections about American factory, proprietary, wildcat and handgun cartridges. But both the European and British sporting rifle sections can stand some add-ins of historically important cartridges. F.I. the Gibbs .461 No.1 and No.2, one of them used by Selous, .360 No.3 and No.4 are not even mentioned. The so called "Kangaroo" cartridges, once developed in England for the Australian market, like .442 Long, .450 No.1 tapered (Not to be confused with the .500-.450 No.1 Carbine) or the .425 Webley are missing too.