BUT So Can 9MM!...5.7x28 VS Level 3A Armor!

Testing some 5.7x28 and 9mm against level 3A armor plates and ballistic gel. Which round is the best self-defense option?

*I am not promoting, nor do I have any affiliation with, any of the retailers or manufacturers shown in this video unless specifically stated otherwise.*
*All shooting is performed on a private, closed range on private property under controlled situations. Do not attempt any activities shown in the videos on this channel*

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