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I recently had my 1892 Berthier carbine at the range. I was using Prvi cases. These had been loaded and fired once without a problem and then reloaded again. Out of the fifteen I fired, ten of them split the necks. I am a bit reluctant to fire the other thirty five in the box. What to do? Pull the rounds, fire the primer and anneal the case mouth? I want more than two loads from these cases. Anyone else had this happen on nearly new cases? The rifle has the N stamp for the upgraded chamber. I might just put it at the back of the cabinet and shoot something else. Regards
Peter.

I anneal all new cases before using them. Since this is expensive brass, I would pull them and anneal them.
Fred

I would anneal the remainder and then neck size in future.

ukrifleman

why do you need to fire the primer? just pop it out with the decapper

never mind... berdan primers innit

No, these are boxer primed Prvi cases. I have decapped live primers but only the odd one, not this many.
Regards
Peter.

ah boxer, then yeah, decap away!!