Purchase a body die. This will only bump the shoulder. With a headspace guage you can set up the die to bump the shoulder .001" or .0015" This will help you from overworking your brass and you'll get more life out of it. I bump the shoulder everytime in comp. guns so I'm sure the bolt always closes easy.Run your brass through the body die then neck size it and you will no longer have any problems. You will also retain your accuracy. You could also buy a bushing die and set it up the same way and that will eliminate the body die. They are a little more money though.