Among the 60+ chamberings that I have dies for, a few of them are sixes (6's).
6 x 45 6 x 47 6BR 243 Win 6-284 come to mind.
Not messed with the 6mm-06, but it ain't over yet.
The 1 in 10 will spin a 100 gr. Partition and as to mag constraint. I'm partial to wood and most of those "woodies" don't have COAL constraints .........