I believe this can be made from 8x57 brass. Is anyone making factory brass or ammo at this time? I'm guessing not, but any info would be helpful. I just found a PME/Wisner Oberndorf style (Yeah!!!) bottom metal for the intermediate yugo mausers (3.27" inside length). Can't do anything with it for a long while, and will surely give myself an aneurism deciding what to do with it. Always wanted an Oberndorf type "M" style stutzen rifle in 9x57, but a 20" barrelled schnabel type carbine in 9.3x62, 9.3x57, or 9x57 is sounding pretty cool. Just looked through my edition of "Cartridges of the World", and found the 9.5x56MS / 375 rimless nitro express. This round looks pretty cool, and I think one could get some impressive performance with modern powders and bullets with moderate pressure. Can't really be any better than the 9.3x57, but it sounds fun. Thanks

I make my brass from 30-06 cases, I just run them thru my sizing die which has a tapered expander, then trim to length. Just about as easy as it can be and as a bonus you can use just about any of the many .375 bullets, the 270 is the standard but I like the Speer 235.
Best.

Great round have a M&S in it, do same use 30-06 easier in my area to find than the 8mm, found dies at RCBS

Kynoch and Ken Stewart of South-Africa makes ammo..