I am still using 4831 that I purchased in in 1968 for $1.50 a pound. I bought 3 gallons of it and still have a gallon left. It still smells sweet and shoots good. It was originally used in 20mm ammunition for the WWII Oerlikon antiaircraft gun which was used on hundreds of US Navy ships and small craft.

Life is like a purple antelope on a field of tuna fish...