I'm glad this was facing up as I loaded it. That's lead showing where a chunk of brass should be. I've bought three 500-round packs of Remington Thunderbolts. In the first box, I had my first ever true squib round (bullet didn't clear the barrel). The second box went well. Now with this one, I've had a bunch of lead deposits in the barrel and today, this. I guess that's what I get for buying the cheapest stuff out there. And of course I sometimes shoot CCI Mini-Mags (because someone will bring it up).