[sauropod]

7.62.

[SFC Chromey]

from the article:
“According to Karl Masters, one of the Army’s top ballistics experts, the Dragon Skin failed to stop a 7.62 x 63mm APM2 round on the second shot of the test.”

7.62x63NATO is the equivalent to 30-06 round! M240B or M60 use 7.62x51 NATO round, while the Dragunov fires a 7.62x54. AK-47 fires a 7.62x39.

I’m not sure who uses a 7.62x63, these days.