I beleve they used three different weights in WW2.
-8g lead core, like those that bacame the standard after the war
-5.8g "PistolenPatrone 08 mit Sintereisenkern" pressed iron core
-6.4g "Pistolenpatrone 08 mit Eisenkern" iron core
(1 grain = 64.79891 milligrams)
Can't say anything about the WW1 bullets..
I know there is a member who knows a lot about WW1 and WW2 bullets, let's hope he is awake for further input