One of the basics is that all modern languages are living things. They change all the time, the reason dictionaries change--because dictionaries aren't derived from a panel of experts, but by "common usage." If a lot of people say "caliber" for "cartridge," then that's common usage. Someday soon caliber will probably be dictionary-listed as a synonym for cartridge.
I can't imagine Ken Howell or any other gun writer writing a book called
"Designing and Forming Custom Calibers" or "Calibers of the World"
It would only show extreme ignorance.
