I do load my .45lc with ACP dies!
I've not had any problems. I do use a specific shell holder for the LC case.
However, both my .45lc's are new production firearms. A Winchester M94 Legacy w/24" bbl. The other is a Ruger Redhawk w/5.5"bbl.
The longer case only requires the crimping/seating die being backed out in order to provide the correct amount of crimp. The Taper crimp is sufficient for all the loads I've loaded including some near .454Casull level loads with 310gr WFN-GC cast bullets over heavy charges of slow burning powder.
The slightly tighter sizing of the .45acp case has been advantageous due to the tighter case neck tension providing increased bullet pull enhancing the ballistic consistency of my ammo. I haven't noticed any case life issues. Even some Magtech brass that is a bit thinner than the more common Starline (in my supply of brass) are holding up very well.
I even bought a set of .45LC dies, but after using them, I sold them to a friend who "just had to have" a set of dedicated dies. He too, now only uses the .45acp dies !!
Saves a lot of trouble changing out dies, as I have a press that is dedicated to .45 use. Just swapping the shell plate, and backing off the dies a predetermined amount, change the powder measure to proper powder and amount, and "Presto", I'm loading .45LC.