Every soldier I ever met in 9 years in the Army who knew any thing about guns from civilian life called this cartridge the .30-06 in some form or another (.30 aught six, .30 oh six, etc.). or simply the “.30 Cal.” Some soldiers just called it the “06”.
The fact is, in common parlance, the cartridge in military form or civilian form, both interchangeable with each other, is the “.30-06” or other derivitives of that name. I don’t know many collectors who call every single loading or this round by is military model number, but rather just .30 Ball, .30 AP, .30 Incendiary, etc., or the same way except for .30-06.
It is fine to nit-pick names, but the purist collector will never win on this one. The world at large has given up using the correct name for the 9 MM 08 military round or the 9 mm Parabellum civilian round, and headstamp their cartridges either just “9 mm” or “9 mm Luger.” Very few makers use the “Para” abbreviation on the headstamp anymore.
Personally, I am quite comfortable with the .30-06 appellation for all of the rounds of this caliber, sometimes modified to be more descriptive of loading, and will continue to use it. By doing so, the newest collector, or collectors who do not collect military cartridges (there are many of them), understand the commercial name, whereas many do not recognize the military disignations when they hear them. I will err on the side of clear meaning for all levels of collectors, and those shooters that sometimes express interest in collecting. I will leave being dogmatic on these things to the politicians. JMHO
Just my take on the subject. Not really open to argument, as well all know both sides of the issue.