Does anyone know where the demand would come from that would have warranted the production of 8mm Pieper cartridges by Remington-UMC? I understand that the Mexican Government used the Pieper pistol during their revolution, and perhaps UMC began manufacturing this cartridge for them. I am looking at a box that is of the style made beginning in 1916 when the Remington Arms Co, Inc name was first used on the boxes. In addition, it has a KLEANBORE paste on overlabel, which most likely indicates production in or shortly after 1926, when Kleanbore priming was introduced, assuming they actually produced these cartridges with the new priming and didn’t just mark all the old boxes on hand at the time as such.
Perhaps Ron Merchant, as the resident REM-UMC expert, would be kind enough to advise what the production dates were for this cartridge. Thanks.