A crystal or crystalline solid is a solid material whose constituents, such as atoms, molecules or ions, are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.nhedral crystals do not, usually because the crystal is one grain in a polycrystalline solid. The flat faces (also called facets) of a euhedral crystal are oriented in a specific way relative to the underlying atomic arrangement of the crystal: They are planes of relatively low Miller index.
Answer Wiki. Actually, in modern warfare, tracers are not used as they were during previous wars. They were originally used to allow gunners to track where their small caliber bullets were actually going. However since their ballistics were quite different than the standard rounds, they only gave a rough estimate for targeting.
Saboted slugs have lead cores with a copper jacket. The rifled slugs are designed to fire through a rifled barrel. The design allows the slug to engage the rifling and spin once it leaves the muzzle. The slugs are bullet shaped and the range is considerably more than a smooth bore shooting slugs.ou can use Sabot slugs in a non-rifled barrel but accuracy and range is diminished. Some weapons allow you to switch barrels, so you can have a smooth bore for lead non-rifled slugs and birdshot and then change out for a rifled barrel, for greater ranges.