Was that factory ammo or reloads? I would guess that on reloads they would take a hard pass on accepting fault?These marks below on my bolt face are caused by defective primers 'pinholing' on the radius of the primer cup, which is totally visible in the pic of the offending primer.
This was the very first 3 shots fired on a brand spanking new REM 700 LR in 300WM…Winchester accepted fault and replaced the bolt. I also had the 1,000 primers replaced.
Cheers.