turn it another 1/4 to 1/2 turn. see it that solves your problem. You may has min spec gauge and a max spec die. see if you push the die a bit harder the brass will fit. other options would be another die or file some of the top of the shell holder.

Another thought. take the barrel back off and measure how much of your gauge sticks out.
should look something like this. have had to send barrels back to have the chamber deepened.


just the rim and groove showing