I sort a lot of brass and often find myself wondering who really makes it.
I'm pretty sure Federal makes their own and the brass for their Wolf line.
Fiocchi makes theirs and Perfecta too.
I'm guessing Remington makes their own and Winchester too, BTW Winchester brass seems to be the softest, if the ejector dents on their once fired auto loader brass are any indication.
But I kinda doubt Speer has their own brass forming plant. Same for Browning. Seems like ammo isn't a large enough percentage of Browning's sales to make a brass plant worthwhile.
I wonder if Hornady just buys the short brass the other manufacturers won't use, Hornady brass seems shorter in most calibers I've seen.
Just a guess on my part but I think a lot of the imported brands are single sourced too.
If anyone knows definitively who makes brass for whom why not share your knowledge here?