This was a development by Polte Magdeburg during the years between WW1 and WW2 similar to the 7×45 Polte when the Germans did research regarding short cased intermediate cartridges that culminated in the 7.92 Kurz. The Swiss were also doing research in this field and the German experiments might have been done with information obtained from the Swiss. Various German companies were involved in research, but it was the Polte factory that did most of the research as well as can be assumed, received most of the research funds. In all of the Polte developments, they kept the base diameter of the 7.92 M88 case, which reduced production costs significantly which probably attributed to their success