Still to read the book but that back of the book says...

Mark Brandon Read - better known as Chopper - is Australia's most feared man. His reputation precedes him as the country's most notorious killer. He has an unrivalled propensity towards voilence and comes tooled up with an astonishing array of weapons including iron bars, knives, tomahawks, pistols, sawn-off shotguns and high-powered military weapons.