I usually do. I have multiple .45s the ammo will be shot through. If your brass was shot from a gun without a fully supported chamber, it will have a little bump near the base. These bump can and will prevent a gun from fully going into battery.
With my Lee dies, the first die the case goes through is a sizing/depriming die. I believe that's how a lot of the dies for 45's are setup. So you may have one that's resizing them and not even know it.
Install the shell holder or shell plate on your press ram. Raise the ram to the full upright position.
Screw in the full length resizing die until the bottom of the sizing die firmly touches the shell holder/shell plate. Tighten the locking ring.
That's ALWAYS the process for setting up your 45 ACP sizing die!