Is Corrosive Ammo Bad (or Actually Okay)?

[HansGruber]

True, but most all, non modern East Block surplus ,and any other WW2 ammo is corrosive. It is certainly not fatal to your bore, but especially in humid environments, running a damp/wet patch down the bore takes care of it. I probably have several thousand rounds of Turk, Romanian, British, and other ammo that fits the bill. Not throwing it away, though.

Not all WW2 ammo is corrosive; .30 Carbine—at least, US manufactured ammo—used non-corrosive primers from the start.