The Yugoicon brass seems the best for continous full length resizes for me. The S&B separated at the base after one reload. PMC seemed like it should have been the toughest of all because the case volume is less than the others (thicker brass) but it only went two full length resizes. I am still reloading Norma cases that I got in the 70s, although the number are dwindling some are probably on their 10th go around.

I've got a stash of the modern Winchester ball, Portuguese FNM ball, Yugo Mk8, S&B ball, RG 1950, and SA 80s ball. Someday I'm going to dig out some of each and try samples through the #4mk2 tackdriver and see how each round compares.
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