STA, yes sometimes those case necks take a beating....and don't last as long as the primer pockets do....
Time to anneal?
JeffO I don't think there are "fast" barrels and "slow" one's....pressure is at work in all of them...just that some puke at less velocity than others...and some might not show the same pressure signs as others...
That 3330 fps load I mentioned above, did not make that case nor rifle whimper......no blown primer, easy extraction,and the primer pocket showed a bit less resistance to a new primer......but the chronograph told me the load was out of character and over the top for what I "knew" about the cartridge....time to back it off....
