Does Federal actually make WSM ammunition? It was my understanding that _only_ Winchester makes WSM brass, but that they put Federal's headstamp on some for them. Whether they make the entire cartridges or simply the brass is a different question, but frankly only 1 of those two options makes immediate sense to me.

I have had a recent experience that make me question the integrity of some 270 WSM component brass. I have no way to verify whether it's a brass issue, rifle issue, or load issue, though, because I'm forming it into .264 WSM so there's no factory cartridges to compare to.

I'd definitely contact Winchester, but I'd definitely contact Savage at the same time. Something's amok, and _both_ of the companies need to help out here, while at least one of the two companies needs to make a correction.