I no personally of a couple winchester model 70 that were bought new that the headspace was not right. All of them where the black shadows if I remember right from Wal-Mart, the same rifles.being recalled. After shot with factory ammo the bolts would not open. They called winchester and sent them back and they said the headspace was not seat right. They got the rifle back and hasn't had a problem since. But still if they were shot in the factor as they were supposedly where, wouldn't that issue been found then.