Primer piercing and recoil pad

[Woodcock survey]

Have a Remington hammer 12 that I made a new left firing pin, it pierced Cheddite primers and I shortened it 3 thou and no more problems.

[edgarspencer]

Seth, it isn’t so much they use Cheddite primers, as that they use Cheddite NPEs.
I don’t know if Cheddite even sells unprimed hulls, but that would be a costly step for RST to add priming new hulls to their operation.

[Seth Mackay-Smith]

Sorry, I see that I was unclear-what I meant was that the thin wall of the Cheddite primers, which I would think are what's in Cheddite NPEs, seems to allow the piercing or tearing of the primer wall during firing instead of the usual deformation. But that's just the internet and my impression!