If cannon grain Cordite is big, think about single grain Cordite rocket motors.
As Mike said, the stuff is versatile.
I don't think the US used Cordite in naval guns or other applications. We had our own powders.
some lots manufactured prior to World War I staying in storage for as long as twelve years without loss of stability."
Yes, but there was hell to pay then, or even sooner.
In 1926 the Lake Denmark Naval Ammunition Depot in New Jersey blew up with several million pounds of WWI propellant exploding and burning as safety distances between storage bunkers turned out to be inadequate. There was considerable loss of life and property.