In 1922, Western Cartridge Co. introduced the 'Super-X' 12 gauge 3 inch shell with 1 3/8 ounces of shot, and the 2 3/4 inch 1 1/4 ounce 3 3/4 dram equiv. load. Peters Cartridge Company's 'High Velocity' and Remington's Kleanbore 'Nitro Express Extra Long Range' loads soon followed.
In August 1923 an ad in
Hunter-Trader-Trapper labeled the new Long Range Wild Fowl Gun as “
The Hardest Hitting Gun in the World”.
October 1923