You can also belt 06 brass. Just a litte short.
If you look up a 411 Ryan or 411 Ryan Express, This is tweener.
It can be loaded with a 405 Win die. If you don't over pressure it and blow the base out to big.
I have a die reamer ground, just have to relieve the flutes and make a nose bushing. Same for the chamber reamer.
and
Been cutting off Barnes bullet for over 20 years!

A little history:

Tried 7x57 brass in the 41-240 works fine with a belt diameter of .465-6. Same for the 06 brass.
Didn't like having to neck ream the bulge in the 9.3x62 brass.[.471 diameter ]
The 9.3x66 has a base of .473, give a good .010 for the belt and no neck reaming.