Presently I am shooting DuPont FFFg that was shipped to me by Rail Way Express and it was, I believe ,by lot number made in 1970. It is a little lumpy but I just stir it with a copper rod, and I see no difference in burning than GOEX FFFg..
It was stored in a storage shed hot in the summer, cold in the winter. Nice little screw top metal cans.
Hold center
Hit something
Bunk