5.7x28 sectioned pics?


#1

I am wondering if anyone has some close-in pics of the 5.7x28mm bullets sectioned?


#2

CanAm–Here are five 5.7x28 sectioned.


#3

Very nice work, Ron. But surely the SS190 is the standard steel-cored ball round?


#4

Tony–It does not show up very well in the scan, but the SS190 does have a hardened penetrator in the nose in front of the aluminum core.


#5


#6

OK, thanks. I didn’t realise that it still had an aluminium core.


#7

Thanks guys.

It seems interesting to be that there is no lead envelope around the steel core to hold it in place. It seems like it would be a difficult process to ensure the jacket is held to dimension during final forming.

Does anyone have any info on the “polymer coating” used on the brass?