I sent photos of the cases with the splits in the necks to Buffalo arms and followed up with a phone call and explained the situation. They said they would get back to me. When they called back, they asked how they could satisfy me. I could have another box, credit, or whatever. Apparently they must have checked some of the same lots of that ammo which probably showed the same problem. Anyway I still had the bullets, powder and primers I removed from the cases so I said to just send me 20 new cases and I'll load them up. Ray