User blog comment:Aramirtheranger/I have had it!/@comment-26347028-20160611150241

About two inches is all it takes, and with a bow of any real power you can easily get that from bodkins, with increased damage. Any armour that is functional in the way you state then means there are, well, holes in it. From the front, yes, this doesn't matter much. But hardly ever do we have a pitched battle where projectiles are coming just from the front. From the side to the neck, and best of all from the back into the arms, is devastating. Even a small wound can cause serious hard with a bodkin head, and as the Romans knew a few inches is enough to kill a man. Even if the head is blunt, and you hit them, a dent of half an inch is enough to break a bone often. Now, it is for this reason that I declare your supposed "God-armour" to be false, as anyone who can wield a powerful enough bow can break pretty much anything with enough kinetic energy.

And now for crossbows. In the rain, they don't work. In the wind, they don't work. At night, they don't work. Need I say more?

The firearms one showed them going about an inch into it, enough to cause serious damage. That isn't much protection, not to mention that that helmet was braced - something few (if any) of the helmets were at the time that LotR equates to.

In short, you've said that all bows are weak, which they aren't, said that crossbows are useful, which they aren't, and that the helmets could all withstand modern firearms, which even that one realistically didn't.