Split neck on .223 case??

[Sinestr]

Bought some new .223 55gr Hornaday (steel cased , fmjbt). . I was quite pleased with the results. However when picking up my cases, I noticed one with a small split on the neck?? Was this just a hot factory load or might there be somethng else going on here. Feel free to chime in on this.

[EBR Works]

Not unusual. I have purchased new Winchester brass that has a few split necks in every batch. You're not going to reload these steel cases so don't worry about it.

[Sinestr]

Cool, was not sure if there was a problem with the ammo. Figured this would be some good plinking ammo from Hornaday. Thanks.