Has anyone ever made one brass from a different brass not because you had to? I would like to make some 7x57 brass from 30-06 brass, not that I need to, but just because I think it would be fun and different. In an old article by George Nonte, he says it is very easy to make and he suggests that one first run the 30-06 brass into a .308 full length sizing die to set the sholder back to the "approximate" length, then run it through a 7x57 full length sizing die. Trim the case to the proper length and there you have it. 30-06 brass is very plentiful and 7x57 is getting somewhat harder to find. Anyway, it sounds like a neat project even if it is not necessary.