Good move 2152hq. When I work on a new wildcat, I place the shoulder for a "crush" fit on chambering. That way there is no case web stretch. The "crush" fit is verified with felt pen on the shoulder, if the scrubbing on the shoulder of the case to be formed, is not visible.
Used to love working with this "stuff", but now, have plenty of 'good' brass for everything I shoot.
The wildcats are still favoured somewhat.