I bought an X-die from RCBS a couple years ago, the thought of not having to case trim sounded too good to be true. I've set up the die per the instructions and checked it 2-3 times. The problem I'm having is the shoulder seems to compress and bulge developing a rounded-shape when I use the die. Being quite concerned about accuracy I went back to my standard die and did all my loading for the season last night.

My question is how do you like your X-die and does it work perfectly for you? Or are you seeing the same issue as well? I'm not totally sure where the cartridge sits in the chamber of my rifle and whether a round shoulder/neck would affect accuracy comparred to a straight shoulder.