A Remington Arms Company .38 Smith & Wesson / Colt New Police military contract is described in History of Modern U.S. Military Small Arms Ammunition Vol. II pages 3-4. The contract drawing No. MP-86 was dated August 2, 1944, entitled “.38 S. & W. 125 GR. (STEEL) M.C. (MIL).” and illustrates a cartridge with REM-UMC 38 COLT NP headstamp.
I have found a picture of another .38 Colt New Police box that looks like a military or police contract. Headstamp reads REM-UMC 38 COLT NP but it’s loaded with a typical NP lead flat nose bullet so I asume it’s not military.
It is not described in Chapter 8 (Miscellaneous Ammunition of Conventional Calibers) of History of Modern U.S. Military Small Arms Ammunition Vol. II (including 2009 addendum). The reason could be it is post 1945.
It is also not described in any OSS or CIA inventory lists that I know of (some lead bulleted cartridges are indeed included).
Does anybody knows something about this contract? Lot number? Year? Purpose?