I'm not 100% positive. I do know it has to be chambered for such. My M-12 shoots 2-3/4.
Winchester Model 12 slide action shotguns were marked as the "Model 1912" from 1912-1919. Godbear Tennessee
your model 1912 Winchester shotgun was made in 1918.
Your winchester model 1912 shotgun was made by winchester in 1920.
your Winchester model 1912 shotgun was made in 1914.
With the serial number that you have provided,your Winchester model 1912 pump action shotgun was made in the year 1916.You should be aware that all Winchester model 12 shotguns chambered in 20 gauge from 1912-1927 were chambered in the 2 1/2 inch length,not the present day chambering for 2 3/4in shells.
Your Winchester model 1894 was produced by Winchester in 1912.
Your serial number indicates that your Winchester model 1912 shotgun was made in the year 1920.
With the serial number that you supplied,your Winchester model 1912 pump action shotgun was made in the year 1916.
Your Winchester model 12 shotgun was produced in 1925.
Your model 12 shotgun was made by Winchester in 1918.
your Winchester model 1892 was made in 1912.
Your Winchester model 1912 pump action shotgun was made in 1917 with the serial number that you provided.