>>569
This is true, but since they are all rounded, they are not very likely to take a direct hit. Materials like kevlar have a weave to them, and the typical behavior of a round that gets "stopped" is that it actually passes through and is then grabbed by the fibers and zipped around your skull, either getting lodged in the helmet somewhere or slung out randomly at a lower velocity. I used to see the occasional random in a chow hall (I was USMC in the 00s) with a bald line going around his head sideways, and that is what that is from.
Insofar as questioning whether to wear one or not, they are generally not that heavy, and so the very real possibility that they can save your life a fair amount of the time sure as shit outweighs not wearing one. I wasn't really liking the lack of detail in the other answers, so I decided to effortpost. I should probably go to bed now.
>>574
This is the epitome of a lack of understanding of why 782 even exists in the first place. Even a skull by itself can skip a rifle round off of it if you are lucky, which is why my small unit was always trained to aim for the fatal T instead. Now, it's hard to fucking see when shit is going down, so you may very well not have that happen (the "regular" soldier in a lot of countries is not all that skilled, to be exact). You would still be absolutely out of your mind not to use 782 unless y