I’m full length resizing. It may be that the Stevens is just that much tighter in the chamber. As I’ll probably just use the 200 during deer season and I actually enjoy shooting the single shot more, having a different box for brass for each gun may be what I have to go to, even if it is a pain. Getting another brand resizing die could also be an option providing I knew for sure that it would resize smaller than the Lee.
RJ