Ruger GP100 fan
Member
On another thread the problem of primer pockets loosening before any other damage causes the need to throw out a case was discussed. I had asked (I think on that thread) about whether or not most re-loaders clean out the pocket before reloading and a number of members wrote that they never touch the primer pockets. So now my question is: could pocket loosening be hastened by not reaming the flash hole at least every couple or three re-uses of a case? I recently bought a hand tool to face the bottom of the pockets so every piece is the same and a flash hole reamer that also champhors the inside of the hole. As I understand from reading the reason the pockets loosen is because of the enormous spike in pressure that occurs in the pocket when the primer detonates. Could it be that tight flash holes do not allow the pressures to drop fast enough as well as causing an even higher pressure spike simply by restricting the movement of the pressure out of the pocket? So far my brass has held up well after 6 reloads,but curious as to whether reaming the flash holes will prevent failure before the (not annealed) necks do. I'm going to try my hand at annealing next.