Do you have any of the specs on what is corrosive or not? I have a bunch of .30 carbine in the original fast load clips, I think it’s Korean war vintage.
You can search the net for specifics, but most DOD ammo used corrosive primers/powders into the sixties.
Again, this is not a problem if you clean your weapons after a firing session - the “corrosive” nature of the components is not a problem to the ammo itself if storage conditions are adequate.
Most military ammo was built to withstand temperature and moisture storage extremes that commercial ammo just can’t tolerate. I have fired thousands of WWII rounds without the slightest problem.
Assume it’s corrosive primed, non corrosive powder from that era. Many people told me that no 30 carbine was corrosive, but why risk a nice piece? I have some Korean era ammo too-great stuff, reliable, consistent, full power,etc. Good ammo, just clean well when done (even hot soapy water works in a pinch for corrosive ammo, or any commercial cleaner,Hoppes, Shooters choice,etc.). Dry well, and oil well. If you reload, soak the brass in soapy water afterward, and rinse well. Or the corrosion eats the brass around the head of the cartridge, and weakens it for reloading. Had a head separation with 30-06 once when i was younger-only takes once to learn that!