A guy I knew when I was younger shot a 3" shell out of a 2.75" Ithaca bottom eject/loader. He had stolen one of my 3" shells and approached me to ask why the shell wouldn't eject out of his gun. I explained.
He was never the sharpest knife in the drawer and still isnt to this day.
By the way, shell fired fine, just got stuck ejecting. Still cant say I recommend it. Sort of like shooting "cut shells". I'm surprised shotguns can handle shooting those.