Re: Brass sorting, and life
what was the nature of the blown case you described? Are we talking a blown or pierced primer, or a head separation of some sort? You mention that the LC cases were Match, but are you sure of that? If this stuff was run through an MG, there's likely some major stretching or other damage here. The headstamp for current headstamp for LC Match brass doesn't have "Match" on it as older M118 brass did, but it stil lacks the crimped in primer found in normal NATO production stuff. Worth checking, anyway.
Keep your brass sorted. It may make no difference at all with some brass, or the differences could be huge, you just never know before shooting. Why find out the hard way? Besides, it's just good handloading practice.