Ballistic Conditions - Conditions which affect the motion of a projectile in the bore and through the atmosphere, including muzzle velocity, weight of projectile, size and shape of projectile, rotation of the earth, density of the air, elasticity of the air and the wind.
http://www.navweaps.com/Weapons/Gun_Data_p2.php
American English. Individual rounds or cartridges or an artillery piece or firearm that have been fired, are called spent rounds. The propellant (powder) has been ignited and vaporized, the projectile (artillery shell or, for a firearm, the bullet), and all the remains is the casing that contained the powder.
https://forum.wordreference.com/threads/spent-ammunition.2246595/
If space is truly going to be accessible to everyone, we can't keep manufacturing propulsion systems like jewelry. Today, we make 44 thruster chips in one run. Propellant is supplied from the tank to the emitter tips. Ions are extracted by the strong electric field applied between the tips and the extractor.
http://www.accion-systems.com/accion-tech/
Primer - A device used to provide a flame for the purpose of setting fire to a propellant charge. Also called an igniter.. Primers are divided into two types, depending upon the type of ammunition used by the gun: 1) Case and 2) Lock. Case primers, as their name implies, are used for guns firing case ammunition.
http://www.navweaps.com/Weapons/Gun_Data_p2.php
Bag Ammunition - Ammunition in which fabric bags are used to hold the propellant and the projectile is handled separately. Propellant bags were primarily manufactured from a raw silk also known as cartridge cloth or else from a special coarse wool twilled on both sides known as shalloon..
http://www.navweaps.com/Weapons/Gun_Data_p2.php
Fabulist said: ↑. Individual rounds or cartridges or an artillery piece or firearm that have been fired, are called spent rounds. The propellant (powder) has been ignited and vaporized, the projectile (artillery shell or, for a firearm, the bullet), and all the remains is the casing that contained the powder.
https://forum.wordreference.com/threads/spent-ammunition.2246595/
4) Valve and Actuator. 5.1) Propellants: Propellants are responsible for developing the pressure in the aerosol container and also it expel the product from the container when the valve is opened and helps in expels the product by atomization of contents or foam production of the product.
http://www.pharmainfo.net/aerosols/components-aerosol-package
Ions leave the thruster chips through small holes in the extractor grids over each chip, and propel the spacecraft in the opposite direction. Each Accion system consists of several thruster chips, a propellant feed system, and a power electronics system.
http://www.accion-systems.com/accion-tech/
Accion's propulsion systems. Accion develops ion engines that perform like typical ion engines would, but in modular packages that are scalable across satellites from 2 to 200 kg. Similar to traditional ion engines, our systems produce thrust using electric fields to accelerate ions.
http://www.accion-systems.com/accion-tech/
Components of Aerosol Package. Propellants are responsible for developing the pressure in the aerosol container and also it expel the product from the container when the valve is opened and helps in expels the product by atomization of contents or foam production of the product.
http://www.pharmainfo.net/aerosols/components-aerosol-package
what are individual pieces of propellant called
Individual pieces of propellant are called Spent Rounds. Individual pieces of propellant are called spent rounds.  