Spray enough of just about anything on a round of ammo every day for a while and there should be no surprise when a dead primer is found. Imagine. I've occasionally cleaned and lubed guns over the the years with nothing but WD-40 and they worked just fine. No rust either. Is it the best? No. But it's just fine. So is that other product of the devil, 3-in-1 Oil. Once upon a time in Germany my carry piece was a Combat Masterpiece, and all I ever cleaned and lubed it with was 3-in-1 Oil and it worked perfectly for the 2 years I had it. Steel wool? You are joking, right?