There is quite a difference in die adjustment from a 38 to a 357 case and you have to get it right for each type of loading.

Most dies can be adjusted to make the case end look like a Bazooka if over done............ and this can happen if a 357 is placed in a 38 special die setting, while a 38 in a 357 setting will not receive any belling.

The setting ring HAS to be reset for each case unless you have a washer or spacer to use when doing a 357 load with a die set for the 38 special spec's.

Make sure your die is almost touching the collet/Ram when in the full stroke...............then turn down the belling section until you get results.
Go back to page one and read the manual one more time then try again. Good luck.