Originally Posted by beauman
My buddy was priming his 223 brass, with a redding hand priming tool. He said he had about 50 primers left in the plastic tray, when the thing blew up. Has anyone had this happen? He had a cut on his face, and lots of cuts on his hand and arm. I told him to call the company, to see what caused this to happen. I'm not sure if he's not telling me the whole story.
As far as I know, Redding does not make a hand priming tool. Only Lee, RCBS and Hornady make them with trays. RCBS has a steel gate that separates the primer being seated from the rest of the tray to help prevent this. I can imagine an upside down primer detonating when you try to seat it, then the blast sets off the rest of the tray, perhaps on any hand primer, but maybe less likely on the RCBS. This would be more likely if large rifle primers were being seated with a small primer punch, and one was upside down.