Later upon measuring these cases, it was discovered the case head had expanded just 0.002" at a position my dies couldn't reach. Those were the cases from the Open Class boys, and that's why they were left on the ground ! Lesson learned !!
Maybe I don't understand what the "recoil plate" is, but I'm sure the case in a revolver slams up against something. That action is what pushes the primer back into its pocket. And if there wasn't enough pressure to make the case "slam" hard enough against whatever it slams against, the primer would be left sticking out - which will lock the revolver up in short order.In a wheelgun, the case does not slam up against the recoil plate.
I call it the breech face, and yes, all guns have something the case stops against. Not sure why that's relevant to case head expansion.Maybe I don't understand what the "recoil plate" is, but I'm sure the case in a revolver slams up against something.
The recoil plate/shield is the part of the frame just behind the cylinder. The lateral expansion of the case against the chamber wall prevents the case from flying backward.Maybe I don't understand what the "recoil plate" is, but I'm sure the case in a revolver slams up against something. That action is what pushes the primer back into its pocket. And if there wasn't enough pressure to make the case "slam" hard enough against whatever it slams against, the primer would be left sticking out - which will lock the revolver up in short order.
I've had a couple of experiences with revolvers locking up due to extended primers, and in both cases (no pun intended) the primers didn't reseat because my loads were too light. As a matter of fact, the "loads" that locked up one of my revolvers didn't have any powder OR bullets - I was conducting an experiment to find out if oil will reliably de-activate primers. BTW, it won't.
No sir, it does not.The lateral expansion of the case against the chamber wall prevents the case from flying backward.
No sir, it does not.
Yep, the primer is pushed out by pressure, then reseated by the breech face.That action is what pushes the primer back into its pocket. And if there wasn't enough pressure to make the case "slam" hard enough against whatever it slams against, the primer would be left sticking out - which will lock the revolver up in short order.
Are there videos of this?Yep, the primer is pushed out by pressure, then reseated by the breech face.