In cowboy action shooting, we love the Lee Factory Crimp die for .38 Spec. (.45 Colt, too). Any finished ctg that passes thru that die will easily chamber and function is a '73 clone. Granted, we're not precision shooting in CAS, but that die in the 4th station of a Dillon 550B is pretty standard fare.
I don't know how much sizing down it would do on an already seated lead bullet, but I guess it could, depending on how oversized the bullet was. That could possibly be an issue in the older Colt SAA's with their .454" bullets and the die set up for .452".
I've never heard that complaint.
DF
