I recall my one and only stuck case. I was not much older than 20 and while knowledgeable about guns still inexperienced. Soooo, for some reason, long forgotten, I decided to run a loaded 22-250 through the sizing die. Of course I took the decapping pin out 1st. Well, it was hard to force in and once I did get the case all the way in the die, it didn't want to come out as expected. A strong shove on the press handle and the case rim sheared off just as you'd expect - I had my 1st stuck case - which to make matters a lot worse was a fully loaded round with powder and primer. (DON'T TRY TO DUPLICATE MY STUPIDITY FOLKS!!) :)
I knew I'd "pooped in my pants" at this point. So after looking at the possible ways to get the case/round out, I knew for sure that poking around the primer end was a "No-No" because if I did accidentally fire the primer, the die would act as a rifle chamber and both the bullet and case head would become lethal projectiles. Well, I decided to get a rod and hammer the bullet down inside the case. (I know it's not smart but that's what I did.) :) Once I got the bullet down inside the case, I turned the die upside down and shook the powder out. Now, I had removed the danger at least. The worse thing that could happen was to ignite the primer and have it pop out and hit me in the eye at this point. I was wearing goggles so that wasn't a problem. I decided to use a hacksaw to cut the case head off. not too long after I started cutting, the heat from sawing ignited the primer and with no pressure comming from inside the case to expand the primer against it's pocket, it popped out and hit the ceiling of the shop. Luckily I had not even come close to cutting the case head off. At this point I went to the standard method. Drilled the primer pocket out and threaded it. I got a long bolt with that thread size put in the case with a big washer or two under the head and put the bolt through the hole in the handle of a big pipe wrench to get some leverage. Using that pipe wrench, with a wood block as a fulcrum, the case came out with very little effort. You can bet your life, I have never tried to run a loaded cartridge into a sizer die again and have never stuck a case at all.