While decapping and resizing some 5.56 cases tonight, my third case got stuck. Having never experienced this before, I went to the web to look for a cure. To my surprise all I needed was a 3/16" punch, a 1/2" open end wrench, a 3/4" open end wrench, and a hammer.
Easy fix! None of the next 200 got stuck.
Bottom of the page.