with my carcano project http://forums.nitroexpress.com/showflat.php?Cat=0&Number=236683&an=0&page=0#Post236683 I came into the possession of 7,62x39 brass now and give it a try

7,62x39
8x39
9x39 ( iirc, a finish wildcat for some kind of action shooting with semi auto AK rifles)
9,5x39
10,75x39
resized with a 41 Mag die
my 401 WSL brass ( ex 414 Super Mag starline brass case)

the case is 1,5 mm shorter than it have to be for 401 WSL but the primer makes bang and the case eject. we will see what hapen after the case is realy fireformed.

when loaded the usual ring where the shoulder was before need an extra tour with the sizer die. in my experience this happen only with the first load and when the case is fire formed this crimp will not be seen again.

after firing the case comes out nicely fire formed

with the 6 round I had a malfunktion,

reason was probaly the 7,62 base is a little bit to big and need to be lathe turned
7,62x38 base 11,21mm
414 super magnum case 11,04mm

414 basic case loaded as 401 WSL and blown out 7,62x39 base turned down