Question: What gun was produced in Canada beginning in 1903 and was invented by a Scottish inventor who died in 1942?

Context paragraphs:
Lisa Zbitnew: Lisa Zbitnew is the CEO of Bandwidth Music and Marketing as well as President and Owner/Operator of the Phoenix Concert Theatre in Toronto.  Zbitnew studied Business Admininstration and Marketing at Humber College.  She was the CEO of War Child North America from 2008 to 2011.  Zbitnew was the President and CEO of Sony BMG Music Canada from the original merger in September 2004 until January 2007.  She served as President of BMG Music Canada beginning in 1996 where she reported to Tim Bowen, who oversaw Sony BMG's operations in the U.K, Canada, Australia, New Zealand and South Africa.  She was the first female executive to hold the position of a major record label President in Canada.

Robert Erskine: Robert Erskine (1735–1780) was a Scottish inventor and engineer who came to the British Thirteen Colonies in 1771 to run the ironworks at Ringwood, New Jersey, and later became sympathetic to the movement for independence.  In 1776 during the American Revolutionary War, he designed an underwater cheval-de-frise installed across the Hudson River at the north end of Manhattan to prevent passage of British ships upriver.  General George Washington appointed him as Geographer and Surveyor General of the Continental Army at the rank of colonel; Erskine drew more than 275 maps, mostly of the Northeast region.

Sir Charles Ross, 9th Baronet: Sir Charles Henry Augustus Frederick Lockhart Ross, 9th Baronet (4 April 1872 – 29 June 1942) was a Scottish inventor and commercial entrepreneur who invented the innovative and often controversial straight-pull actioned Ross rifle.

William Brownie Garden: William Brownie Garden (December 2, 1869 – 1960) was a Scottish inventor and entrepreneur.  He is probably best known for his invention of the "revolving blackboard".  Up until his death at age 90, in 1960, the ‘Inventor’ still worked at his own bench in the factory, from which came innovations like an improved saw which cut ten times quicker than any other, and an eight-wheeled car for faster cornering.  For relaxation he produced scores of beautifully carved walking sticks, which he presented free to the older townspeople.  His mind roamed the entire mechanical firmament.  He was a dreamer with the most practical of brains, who, even in his youth, foresaw the future by drawing tentative plans for a vertical take-off aero engine.

Carmencita (film): Carmencita is an 1894 American short black-and-white silent documentary film directed and produced by William K.L. Dickson, the Scottish inventor credited with the invention of the motion picture camera under the employ of Thomas Edison.  The film is titled after the dancer who features in it.

Canada Geographic Information System: The Canada Geographic Information System (CGIS) was an early geographic information system (GIS) developed for the Government of Canada beginning in the early 1960s.  CGIS was used to store geospatial data for the Canada Land Inventory and assisted in the development of regulatory procedures for land-use management and resource monitoring in Canada.

John West (captain): John West (1809 – 1888) was a Scottish inventor and businessman who emigrated to Canada, California and later Oregon where he operated a cannery and exported tuna to Great Britain.

Norman Hossack: Norman Hugh Hossack (born 22 February 1946) is a Scottish inventor/engineer and is recognized as the inventor of the HOSSACK motorcycle front suspension system, as seen on the K Series BMW motorcycles.

Ross rifle: The Ross rifle was a straight-pull bolt action .303 inch-calibre rifle produced in Canada from 1903 until 1918.

Mungo Ponton: Mungo Ponton FRS (20 November 1801 – 3 August 1880) was a Scottish inventor who in 1839 created a method of permanent photography based on potassium dichromate.

Supporting paragraphs: Sir Charles Ross, 9th Baronet Ross rifle
Answer: Ross rifle