I spoke to a tech rep after purchasing an older bottle of 4064. He said 15 years as long as the powder was stored in a location where the humidity and temperature doesn’t fluctuate too much. Room temp low humidity is good.
Sure that's not Soylent Green?You can see at least 50 (or more) of the giant 24 lb Varget logs in the picture, not just one.
How old are your friends?24 lbs. is not a lifetime supply for the people I shoot with.