I have one like that.The one I have is from the 1960's.I don't know how long after that they still used that same can.Looked on Ebay and there are some full cans selling for $24.99 + $9.25 shipping.Looked for IMR 4350 powder can and those empty metal cans are going for about the same price.

~Molɔ̀ːn Labé Skýla~
As Bob Hagel would say"You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong."Good words of wisdom...............