TulAmmo L/R Mag Primers

I'm on my 3rd box of 1K. I've never had a single hiccup with them. I honestly don't see any difference after switching those out from my usual CCI lr's and my chrono shows no difference either. My only "problem" I've ever had is when I use the Tula small pistol primers, they don't feed real well in my primer auto feed when loading my 40 s&w.