Interesting that the Super-X Lubaloy load seems to have remained a 2 9/16" shell (1 1/8 oz)--at least per the information in the 1940 Shooters Bible--although there was the 2 3/4", 1 1/8 oz "magnum" to which Researcher refers. In addition to Remington, Peters was also offering a 3 1/4 DE, 1 1/8 oz 16ga shell in a 2 3/4" hull by 1940.