I’ve been working on the 13th Edition of Cartridges of the World; adding some cartridges, making some corrections and adding some new material. The current 12th Edition contains dimensions for about 940 cartridges in calibers ranging from .12 to .51.
Just out of curiosity, of the following calibers, which do you think is the most popular. Or, to put it another way, which of the following calibers do you think have the most cartridge listings in the 12 Edition. For example; there are 30 cartridges listed that use a .257 caliber bullet.