Rusted Sig Cases

[beechnutbob]

I wet tumbled some 9mm and thought I had thrown out the steel cases.  They all looked like brass to me.   After laying them  out in the sun to dry an hour later I saw some rusting cases.  Ran a magnet over the drying cases and found about 60 that were rusting, head stamp Sig.  They must use a copper/brass wash or something, if they were plated don’t think tumbling would remove plating.   

[shred]

There are brass-plated steel cases out there too.  Always have a magnet somewhere in the system; even just one taped to the casefeed tube.

 

[Farmer]

Are they boxer or Berdan primed? The Wolf brand 45’s are boxer and I’ve reloaded those for throw-always while hunting. Just have to use a good lube like imperial for sizing. I once picked up a bunch of 303 British brass that I was just going to throw in the brass bucket and it was all copper washed steel too. 

[beechnutbob]

Boxer