Trivia: The Jackal demands $500,000 (US) to assassinate De Gaulle, which seems like a modest amount for such a dangerous job. However, when you take inflation into account that was the equivalent in 2019 money of over $4m. No wonder his putative employers are surprised.
Trivia: Fred Zinnemann wanted the Jackal to be played by an anonymous actor, so he passed over established stars such as Michael Caine, Roger Moore, and Jack Nicholson in favor of Edward Fox. He later admitted that his decision might have been what contributed to the film's sub-par performance at the box office.
Chosen answer: According to Wikipedia: "Cordite is a family of smokeless propellants made by combining two high explosives: nitrocellulose and nitroglycerin, i.e. it is a double-base propellant. However, Cordite N, a triple-base propellant is also used. Cordite is classified as an explosive, but it is normally used as a propellant for guns and rockets." So yes, it works.
Twotall