https://www.agirlandagun.org/wp-content/uploads/2015/07/ammocomponents.jpg
Casing, bullet, powder, primer = cartridge
commonLy used terms:
Brass =casing
Spent brass = a casing that has been fired, will have tell-tale evidence to differentiate from New unfired casing
a cartridge case holds unused ammunition, ie cartridges.
generally speaking Imo terms are incorrectly used interchangeably..but a cartridge case is an unused assembled object and a casing is part of an assembly that is either new or spent, and a case is part of a complete object that holds something such as a briefcase.
Jmho.
Yup.
