A projectile weapon is a type of weapon from which a physical object, often a bullet, is shot at a target, propelled by chemical reaction or other means. Projectile weapons are generally considered primitive in comparison to other energy-based weaponry, though can be highly effective, particularly in situations where modern medical aid is not immediately available. Such weapons were often also referred to as "slugthrowers". (FASA RPG module: The Orions: Book of Common Knowledge)