Insert the following:
"POWDER, SMOKELESS
Substances bases on nitrocellulose
use as propellant. The term includes propellants with a single base
(nitrocellulose (NC) alone), those with a double base (such as NC
and nitroglycerin (NC)) and those with a triple base (such as NC/NG/
nitroguanidine). Cast, pressed or bag-charges of smokeless powder
are listed under "CHARGES, PROPELLING" or "CHARGES, PROPELLING FOR
CANNON".