I was out today with a fellow stalker friend for a bit of range time, he had put a few rounds down then went to cycle another round and found that his cases had split into two pieces. We got the larger part out of the chamber easily, load another round, bang....fine. Loaded another, same again round in two bits. This was the third time these Norma cases had been reloaded, no pressure signs and cases in good condition. Rifle... 6.5x55 in a Blaser R8.
Any ideas, bad brass????