Sadly I had to resize after coating. Unless I seated them about .045" further in than my regular lubed & sized loads, the exposed bullet would get hung-up inside the barrel. These bullets have a pretty stubby ogive. Due to pressure concerns with an extra heavy bullet in a 9mm gun (each weighs over 157 grains/mixed wheel weights), I decided not to risk seating them that deeply and resized them instead. I think this was the right move...
They came out to .359ish with the PC, so I sized a couple hundred bullets to .357 and that cheep Lee press didn't break (so far). I'm going to shoot them Monday through the chrono using 3 different N320 loads: 2.8 gr, 2.9 gr, and 3.0 gr. while aiming for 800 to 820 fps. 2.8 grains gives me that in my sized & lubed bullets, but I heard we loose a bit of speed with PC bullets.
I have some concerns about leading, so I'm going to inspect my barrel after 10 shoots, then 25, then 50 shots, and hopefully shoot at least 200 rounds. If that PC layer is as effective in barrel obturation as lead is, then my barrel should come out shiny and clean. If not, I'm back to the old tried-and-true way. I've never experienced even a hint of leading with these bullets lubed and sized to .357 with the Lyman, so it should be a good test.