Why? I am not surprised, and trust me I have experience in this department. 35 year old ammo in a bedroom, no problem for ammo. You are talking 1973 ammo. I’ve shot 1918 ammo without a hitch. Blast WW2 surplus a lot (corrosive but good). Helps where’s it’s stored. Dry, no serious temperature fluctuations (freezing/hot,etc).
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.
Thanks for that. Good to know. Not exactly the opportune moment to test it, though.