Ross rifle
The Ross rifle is a straight-pull bolt action rifle chambered in .303 British that was produced in Canada from 1903 until 1918. Wikipedia
Designed: 1903
Barrel length: 711 mm (28.0 in) (Mk 1 and Mk IIs) 774 mm (30.5 in) Mk II** and Mk III)
Caliber: .303 in (7.70 mm)
Cartridge: .303 British (7.70×56 mm R)
Feed system: 5-round stripper clip/charger
In service: 1905–1918; 1939–1945
No. built: 420,000