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Discussion Starter · #1 ·
After reading about reloading the 5.7x28 I looked at some of my fired brass just out of curiosity. I noticed that a lot of the SS195 primers were flattened out, some very flat. SS198's are only somewhat flattened but almost every one seems to show a good bit of cratering around the indentation. American eagle primers don't show any signs of flattening or cratering at all but it's a slower round.

Is this normal for factory 5.7 ammo? Could it be that the lead free primers have a weaker cup? The only other thing I can think of that would cause flat primers is too much headspace.
 

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Discussion Starter · #4 ·
Thanks, that alleviates some of my worries about the cratering although they are coming out of the FSN a bit flatter than yours. I've seen a few as flat as the one on the middle left. The 195 and 198 were from '14 according to the headstamp.
 
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