[Ron Wood]

Eric,
G. van Vlimmern has already given you the best answer you are likely to get, that the rounds were provided by DWM. Since there were no 7.65mm firearms in the U.S. Army inventory prior to acquiring the Test Lugers, there would be no ready source for ammunition in the U.S. Therefore DWM, as probably the largest ammunition producer in the world at that time, would have supplied the rounds to be used in their Lugers. Quoting from page 40 of Reese's book, "200 rounds of German manufactured ammunition were issued with each pistol". Also as Gerben has indicated, the rounds would most likely have been the truncated cone type. Individual rounds are difficult to find and a full box would be real treasure and quite expensive.