8X72R brass can be made from the not so hard to find 9.3X72R brass but it takes some patience. Proper annealing and regular cycling of the press in small steps with a freshening of sizing wax as you go will limit your number of wrinkled cases. Your cases will increase in length by roughly a 1/16" (the brass has to go somewhere) so trimming takes a bit of doing as well. After these three steps the rest is standard issue reloading.

Regards,

Mark