Did the cartridge bind up your revolver after you fired it? Once, I had a primer that absolutely would not seat flush. I did not want to load that case with the primer installed incorrectly. I was afraid to try and deprime a live primer. So, I stuck the case in my revolver, opened up the back slider, pointed the gun in a safe direction, and bang. That case backed up a bit and tied up the cylinder something fierce. I heard that if you drill out the primer's flash hole that doesn't happen.