Slug
A slug is a single projectile (bullett) fired out of a shotgun. Usually 50 or 75 caliber (in 12 gauge). Used by Police, Hunters, Military. Sometimes wrapped in plastic for better accuracy, this plastic breaks off on impact. 
12,20, and .410 gauges usually availible.


Dude you hear bout that there Mr. Jones? lost an entire leg cuz of that cops 12 gauge and a slug.