Re: Processed .308 brass
I would try some.
But before I loaded them, I'd run a feeler up and down the inside case wall, especially down in the bottom 1/2"-3/4", looking for a slight groove running in a cirle around the inside of the case. This indicates the case was fired in a chamber with excessive headspace, as is very common with machine guns. The presence of such a groove indicates that the case was overstressed, and represents the beginning of a case head separation vulnerability. Cases with such grooves may be unsuitible for relosding, especially with snappy loads.
.006"-.007" neck tension is quite a bit. I would try some that way and another bunch with the expander; to see what consequences the two approaches provide. That way, you'll <span style="font-style: italic">know</span>...
Greg