If you are going to reload you will eventually get a case stuck in your die. This will be caused by the above mentioned items plus maybe some off the wall reason. What you have to do is either purchase a stuck case kit for your die or make it yourself. All you need is 1/4-29 tap, a drill bit for drilling and tapping 1/4-20's, a large nut so you can put a 1/4-20 bolt through it to get at the tapped hole in the case and a couple of large flat washers. This way you will be able to get the stuck case out without ruining the die.
Polack