Thread: Powder Use By Date?

Originally Posted by shooternz

From what I heard from various people supposedly in the know CAC only load two Powders AR2201 and surplus 4831, I used a lot of AR2201 for cast bullets it had the same burn rate as IMR3031
both powders were good to the .303 and .308.

Greetings Shooternz,
I had heard much the same. About 1980 I bought a can of NL4831 packed by CAC. The original surplus 4831 ran out about 1972 so perhaps this was the new 4831 made by Nobel's hence the NL prefix. I think that there was some connection between the companies but might be wrong on that.
Regards Grandpamac.