Interesting. The ones I’ve opened have been pretty clean. Might depend on the way they’ve been handled in transit.
EVERY box of that stuff I have is dirty. I am relegated to shooting it in a 10-round S&W revolver I have because so much of it hangs up and doesn’t cycle in more than one brand of semi-auto pistol
I’m not talking about a workhorse Marlin Model 60 rifle that will shoot cow manure propelled bullets or a even a basic Ruger 10/22 here. Fine-tuned pistols that feed clean good ammo that isn’t dirty and economic.