Well, one of the interesting things about the 7.65x53mm is that its a true .311", and there are still a few folks around who think the .311 is more accurate than the .308".
I'm not sure about strength of brass, but I've never heard of the Mauser brass failing due to too much pressure-now the guns, well that's another thing.
It sure would be great to run across one of those model 70's in the Mauser round. If Norma still loads it, there must be some folks who still hunt with it.
Thanks for the replies.