Originally Posted by mrb1982
But I am wondering if maybe I took 223 brass, run it through a full length 204 die, would it come out alright?????
I know the 204 has a 222 parent case, but I don't know enough about the differences in case to know if it would work. Seems the 204 is a little longer, would a guy gain that back at all??????? More or less posing questions for conversation purposes.
No, the parent case of the 204 Ruger is the 222 Remington Magnum, not the 222 Remington. The .204 Ruger is too long to make from .223 brass.