I set up my press to load 3 " Winchester HS hulls then added a MEC short kit to be able to load 21/2" shells as well. The literature claims no adjustment is necessary if using 2 1/2" HS or Remington hulls.They are correct as the loaded ammo turned out fine. The older Win AA hulls are longer and require diddling around with adjustments.Couldn't be bothered I'll roll crimp the other brands and when they wear out at 3 " cut them off to 2 1/2" and load them some more.