This document discusses forensic ballistics and firearm wounds. It begins by defining forensic ballistics as the science dealing with the investigation of firearms, ammunition, and problems arising from their use. It then discusses different types of firearms and ammunition like rifles, pistols, shotguns. It explains the different types of firearm wounds based on factors like distance, ammunition used. It details the characteristics of entry and exit wounds and how they differ. It concludes by listing some medico-legal aspects examined in firearm injuries like the type of weapon used, direction and range of fire.