[Researcher]

Here are some pages from a January 1, 1925, Remington ammunition Price List with the 12-gauge 2 3/4-inch loads annotated.

January 1, 1925 Price List Page 5.jpg

January 1, 1925 Price List Page 6.jpg

January 1, 1925 Price List Page 7.jpg

January 1, 1925 Price List Page 10.jpg

Before 1907, Union Metallic Cartridge Co. offered a Load No. 5 or X5 that was 2 3/4-dram and 1 1/4-ounce of shot in a 2 5/8-inch shell which was dropped by 1907, and Load No. 8 or X8 came in a 2 5/8-inch case. Remington Arms Co. used Load No. 8 to target their doubles --

223223 front.jpg

131920 01 front, ARROW Load No. 8, 2 5-8 inch.jpeg

135127 00 hang tag 1907 vintage, NITRO CLUB Load No. X8, 2 5-8 inch.jpg

Beginning in the July 1907 UMC Price Lists Load No. 8 and X8 were in a 2 3/4-inch case.