Issue #118 of Handloader magazine (Nov-Dec 1985) had a very good article by Ken Waters on reloading the 8x60S. These were still available from Handloader Magazine. He goes into detail about forming brass from 30-06 brass and details many good loads. It's an issue worth getting. I used it for developing loads for my 8x60RS double rifle and they were very good. Basically all you need is a couple of expander balls to neck up the 06 brass in steps then fireform them. He makes a good point that if you use 30-06 brass you should deface the headstamp so as not to inadverdantly load the .323 ammo in an 06. I would check and see if you can find some GI brass with no caliber headstamp. Just a suggestion. I think you will be pleased with the performance, I certainly was.