Embarrassed to say I fell down the "cam-over" rabbit hole and pulled an all-nighter reading up on theory last night; in the end (lol), I guess it has no place in my little 9mm minor world...more for headspacing bottlenecks, I guess, and getting the die true dead center/no sloop/repeatable/predictable/whatever? A lot of it was way over my head, but interesting, so I consumed way more than I should have...and then set my decap/resizing die to just where it met the shellplate (like "Gary" at Dillon suggests), rather than the additional 1/4 turn I set it at at first. So I moved on and got some sexy belling done, but I got to thinking—I wonder if I should bell more with coated bullets to ensure I don't scrape of the coating while seating...then I argued with myself that a thinner coating might not need as much bell...then argued that, in this case, both are .356 anyway, so keep it the same. So my question is—is there a well-known rule when it comes to belling for different bullets (e.g., cast require more to ensure you don't deform when seating or coated larger to protect the coating) or something like that? I took 3-4 different bullets (and with all being .356 I had a duh moment) and all sat up top perfectly ready for the seating die...was just going to seat each bullet and pull and view the results, but thought I would ask. If I can get away with setting it and forgetting it (trust, but verify) at .390 on the money, .010 larger than .380, then remove the bell to bring it back to a perfect .380, I can call it a night.