I had some unused powder from the middle 70s. I had H-110, Green Dot, Herco, IMR3031, 4895, Unique, Red Dot, H-5, H-7, and IMR 4350. I gave a lot of the rifle powders to a friend just starting reloading, and burned the pistol powders up myself in plinking loads. This powder has been stored in my residences under climatic controlled conditions. There were no problems with any of the loads.
Savage