Originally Posted by
Defaultmp3
Oh, that's quite easy, just look at the plethora of Level III rated plates that can't stop M193 or M855 (steel and UHMWPE respectively), Level III being able to defeat 6 hits of M80 at whatever spacing NIJ specs. Hence why I'm very hesitant to accept the claim that the U210 "stops everything non-AP less than .308". Now, since the U210s appear to have a ceramic strikeface, it's an educated bet that it'll do okay, given the info you've provided on the M80 testing, but that's still just a guess based off of what information that is out there. It's quite conceivable that the higher velocity of the intermediate cartridges would overcome the plate more than the larger mass of the M80, while still having enough ass compared to M855A1 or M193 despite being slower, that might have a great enough BFD to be considered a serious failure.
So yeah, I would strongly caution against throwing out statements like based purely on conjecture, even if on the face of it the claim seems reasonable. It's unfortunate that we have to be so cautious about it, and like you noted, the intermediate cartridges are very unlikely to be a threat, but I do believe we need to be careful in understanding the limitations of armor. Other than that, excellent information on the U210.
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