LC brass?

wilecoyote,

what you have there is Match brass that was originally loaded with a 168 gr. SMK in what was known as M852 National Match ammunition. The knurling was to denote this as "not for combat" ammunition, and the boxes were so marked. Bad news here; the knurling is right where cases tend to separate, and thus weakens the brass at an already critical point. I don't normally recommend this brass for reloading if you have any other option.
 
wilecoyote,

what you have there is Match brass that was originally loaded with a 168 gr. SMK in what was known as M852 National Match ammunition. The knurling was to denote this as "not for combat" ammunition, and the boxes were so marked. Bad news here; the knurling is right where cases tend to separate, and thus weakens the brass at an already critical point. I don't normally recommend this brass for reloading if you have any other option.
KSTHOMAS, thank you very much about the info ! (don'worry about "his" reloading,anyway: I have only this specimen...)