Been running my fired CP brass through a friend's "Case Pro" reforming press. Puts the 9x23 back to original specs, even gets rid of the extactor caused burrs on the rim!
He, an IPSC shooter, says he gets up to 20 reloads on his CP brass. I had been getting a half moon ridge on my brass at the feed ramp of my full auto PPSh-41. The reforming takes care of this problem, whereas, my sizing die did not. I will be shooting a lot more 9x23 now.
bill berg
My PPSh-41 website