Firearms and Tool Marks Flashcards
Shot Gun
has a long, thin, smooth barrel
Land
part of a bullet or bore that is raised
gunshot residue
gases, soot, unburned or partially burned gunpowder released when a shot is fired
tool mark
any cut, scrape, impression, gouge, scratch, indentation or other mark left on an object or surface at a crime scene
semi-autmatic
gun that fires a single round with a trigger pull and reloads itself
caliber
the diameter of the bore or bullet
shot
numerous round metal pellets
smokeless
is the most common type of gunpowder used in ammunition today
gunpowder
highly flammable material that pushes the projectile out of the gun barrel
handgun
has a short, rifled barrel
made up of a case, primer, powder, and bullet
cartridge
microscopic markings left on the surface of a bullet
striations
made up of a casing, shot, wad, powder and primer
shell
groove
part of a bullet or bore that is pressed in
spiral grooves impressed into the barrel of a firearm
rifling