"Peculiar smell due to the anti-flash additive (nitroguanidine)."
We made that at the Sunflower Army Ammo Plant, DeSoto, KS. I was the Quality Assurance Engineer. Packed it out in 50 ib drums and shipped back to the Radford.VA plant. Most was used as part of a triple base canon powder aboard ship.
Bought mine from Bartlett's Reloaders. Purchased a case of 7 pounders and kept three for myself. Wish I had bought more! 6 months in and my first jug is half gone.