I fire formed 50 rounds of 338 lapua improved. I used 90 grains of magpro with a 285 eldm jammed .010. Out of the 50 rounds 3 randomly split the side of the case no signs of pressure on the primers. This is adg brass, has anyone seen this?
It was the first firingMight be a bad batch of brass. I'm assuming this was new brass since fire forming to AI. I've lost a few cases while fire forming 270 Win to 6.5 Sherman, but it was 1x fired brass and the split was at the shoulder. I'd reach out to ADG - I'm sure you'll be taken care of.