Yes they will, and that's the whole problem with them.
As for shooting un-sized bullets that won't fit in a S&W revolver chamber, so you squish them till they will fit?
Too each his own I guess.
rc
I should qualify my statement. I don't use them for this purpose anymore, but I did. I know someone that has reworked theirs so that the "resizing" portion doesn't work but the crimping section does. The only purpose I can see for the LFCD is if your 45 caliber mould is .454" and your 45ACP revolver chokes on them, so to speak.
What I do like about them is that you can use them wrong. Hear me out. I like to seat and crimp in two steps. Since I load on four different machines that will allow that, I use that advantage. The Square Deal B has it's own die set but it seats and crimps in two steps.
The Lee Classic Turret press in 4 hole allows me the same thing, seating and crimping in two steps. The Dillon XL650 has enough holes in it to gag a maggot on a gut wagon and I use them all to process bullets.
To get the two step seating and crimping, you need that 4th die. Either another standard seat/crimp one or the LFCD. What I have done is this, and I use this every time I reload now, use the LFCD to seat my bullet and the standard die to apply the crimp. By screwing the seating plug all the way into the LFCD and using the body threads for depth adjustment, it keeps that pesky "resizing" function from happening while seating the bullet. In the next station, I use the standard seat/crimp die in the opposite fashion. Seating plug screwed all the way out, don't want to lose the components from the inside of the die, so that it never hits the previously seated bullet, and adjust the outside of the die for the proper crimp.
Works for me and you have to do this or order a standard seating/crimp die separately. Since they don't sell single dies at the local shop, I chose to do things this way. Now, for some of my auto rounds, I simply have a taper crimp die in the 5th hole of the XL650.
And, rc, you are quite right, to each his own. If everyone did things exactly as you or I, while we both feel they would be doing things exactly right, it would be a pretty boring world, dear friend!