"The Ribeyrolles 1918 was an attempt to manufacture an automatic rifle for the French forces. It was chambered in the experimental 8x35 mm round, used straight blow-back, was fed from a 25 round magazine and had an effective range of 400 m. The cartridge, arguably the first purpose-built intermediate cartridge, was obtained by necking it down the .351 Winchester Self-Loading. Another source indicates that it was chambered in a cartridge designated 8x32 mmSR."@en . . "570.0"^^ . . "30000.0"^^ . . . . . . "1916"^^ . "400 m"@en . . "550"^^ . . . . "Ribeyrolle 1918 automatic carbine"@en . "1090.0"^^ . "Carabine-mitrailleuse Ribeyrolles Mod\u00E8le 1918"@en . "8"^^ . . . "5.1"^^ . "Only known photo documented on the internet."@en . . "1916"^^ . . . . . "The Ribeyrolles 1918 was an attempt to manufacture an automatic rifle for the French forces. It was chambered in the experimental 8x35 mm round, used straight blow-back, was fed from a 25 round magazine and had an effective range of 400 m. The cartridge, arguably the first purpose-built intermediate cartridge, was obtained by necking it down the .351 Winchester Self-Loading. Another source indicates that it was chambered in a cartridge designated 8x32 mmSR. Its official name was Carabine Mitrailleuse 1918[citation needed] (Machine Carbine 1918 in English); in a 2007 book it appears as \"fusil automatique Ribeyrolles 1918\". The Ribeyrolles had the distinction of being fitted with a lightweight bipod on the front (which would be meant to be used as a support weapon for a group of soldiers) and a rifle bayonet identical to that of Berthier Model 1907 / 15."@en . "25"^^ . "450.0"^^ . . "yes"@en .