I was in the Same boat couple years back, as I love the 06 parent case. I Was going to send a donor tikka to JES.

Since I can shoot 220s with 06 and I wanted to shoot heavies, I ended up with a 9.3 to really shoot the heavies.
While the sauer 100 is really a great gun and 9.3 is everything I wanted and then some.
There are days I wish I would have stuck with my original idea of 338-06 and send a tikka to JES.
But then, If I ever go to Africa, I know I’m set.

All of them do something better than the 30-06, but none of them do everything as well.