EDG
"In particular the Redding 45-70 dies have the seating punch that is too long for long bullets and the sizing section of the die is short at about .440 long.
I know because I have both Redding FL and neck die sets in 45-70. "
Based on my example of one I have to disagree on this point . Even in the 45-70 I wouldn't think that a 405 gr bullet is a short light bullet . To reach a feedable OAL for my 1895 for Lyman 458193 , 454613 , Lee 457-340 F , 457-405 HB and a PP 350 the seating stem has a half to 1 thread for the lock nut and avoiding the crimp . Hence the source origin of the post needing either a flat point or a closed radius or just a plain old longer seating stem . Of course I could just screw the die down another turn and gain that length to back out the stem but then I'm back to seating die , crimp sizing the bullet which I really don't want to do.