A little distant here from the original topic , but when I was fireforming cases for my 240 Gibbs I ended up with one case that had a solid chunk of instant wheat left in it after firing. The case formed fine but had to break up the chunk to clear the case. That was one out of about 80. Not really sure if it was just a fluke or if a different filler is being called for, but just the same it went solid.