Well, mostly they would not eject, some stovepipes.
Would fire one round, not pick up the next.
I really need to pay attention, I had 3 other shooters I was working around.
It also seemed that they didn't seat as nicely as the ones with the pistol.
I did have one case rupture, all shooting using T22. felt the spray between the
barrel and slide on my forehead, no damage.