Dear Geno,
TankYou very much.
Realy I had a small discussion on Nitroexpress forum.
My problem is more teoretical than practical.

In practis, take a 30R Blaser case, make fireforming and trimming.
It will be suetable as for 11x65R as for 1075x65R.

A little more interesting is question about bullets diameters.