it depends on what I'm using the round for.
if I'm feeding it from somewhere else I like it tucked up under so it's a smooth transition.
if it's just crimping to keep things from moving forward I move it to the bottom so the crimp folds down over the little ramp.
it just kind of fixes the oal into position.
I like to seat as long as I possibly can in everything unless accuracy or feeding are affected.
That is exactly why I made this crimp die. It doesn't touch the outside of the case with a .434 bullet but is close. It lets a .434 bullet pass thru with no contact.LEE also offers some collet type crimping dies for selected calibers. They're like the Factory Crimp Rifle Dies, but are for primarily revolver calibers. I have one around here somewhere for 44 mag that I ordered for a long-gone 629 with .434 throats. I had ordered a custom mould for it from Accurate, but the bullet diameter was big enough that I was damaging the front driving band with normal crimping dies. That revolver was such a pain to load for!