Hey pard. Just came across this thread at the following link.
http://p089.ezboard.com/fmilsurpafterhoursfrm20

Scroll down to the thread on most accurate 8mm load. This whole forum is on the 8mm Mauser rifle and the specific thread has some 19 responses on various loads. This is the same cartridge that you are interested in.

Factory loaded 8mm is a bit anemic because of concerns over mistakenly trying to load it in the older pre 1900 Mauser rifles that can't handle it.
Also if you have access to the Nosler reloading manual it chronicles their most accurate loads by type powder.
Hope this helps.