I've been accumulating what I need to reload for 7x57 mauser that I obtained from a member here.
I have about 30 cases all marked 7x57 from a couple of manufacturers and the all go through my Lee shell holders
(have one for std lee press and a x holder for the APP)
Got some from another member today and they are all marked Hornady brass, all 7x57, but half of the brass won't go through the holders.
The ring above the rim is 0.020 larger on half the brass. I examined and the 'newer' brass has a distinct bevel above the rim, but the brass that won't fit holder doesn't. But that brass looks very similar to the first cases that fit. Kind of strange to me.
Should I look for another brand shell holder? Which right now is pretty hard to find anything.
I'll post picture.