Laffin' here....I am a moly user and have a good system so it works for me, long strings between cleaning.
As for the cold weld, yep, naked metal without any kind of lube will tend to "bond" or need to be "broken free" in a suprisingly short time if there's any force on the surfaces. I've seen it on flat surfaces where just a hunk of metal was laying upon another, and had it happen early in my handloading (before moly) when I'd loaded some "squeaky clean" virgin brass and shiny shiny bullets. Early it shot fine, but I was slow going through the batch and sure enough, I got some wild flyers and flat primers, it wasn't until I tried to pull a bullet and see what my powder charge was, that I realized there was an issue. Couldn't pull, but I could "pop" it downward about ten thousandths and the rest shot fine. But that was a lesson.
