So, I have read where guys are using the 45 colt sizing die to neck size 45-70. I can understand that the first .6 " of a 45-70 is the same size as the 45 colt shell. When doing this way, do you decap with the decapping pin or is it too short and you have to use another die to decap? Also, does the expander of the 45 still go inside the case of a 45-70. I am just a little confused, as I don't have the 45 colt dies right now, but will be getting some soon to load up some 45 colt shells.