Whenever making brass out of something else, as as a normal fuction of loading for a 'new' round, one should measure the chamber to find out it's dimensions.
Here's the system I use to make 9.3x57 brass from new RP 8x57 brass. I neck it up to .42 or .44 cal using plungers in dies, then neck them back down to fit the chamber perfectly, with 'feel' or slight crush on the bolt.
1 pass to open them up, sized perfectly - no annealing.