Odd finding from New boxes of Winchester 5.56 from Lake City, looking for advice

[RVTECH]

I shot ammo what looked like that the other day. Still here.

Yea, even pretty heavily & ugly crimped ammo will shoot relatively safely. It aint like the bullet is welded to the case.

Chambering and accuracy might be affected but providing nothing inhibits the bullet leaving the case mouth not much is going to happen.