» Thu Dec 30, 2010 6:24 am
One other thing that will effect the velocity of the incoming bullets is gravity (i.e. bullet drop). If the enemy is a mile away taking potshots at you with a badly aligned scope, he might aim for your head, and hit your foot instead. (alright, that's supposition, I never bothered to do the math, but it sounds about right <_<).
Also, the material of the armor effects it. A Power Helmet will take a lot more damage before letting in the ammo than a Combat Helmet. It's thicker and made to resist a lot more punishment.
Plus, what type of bullet is it? If it's a soft little lead ball, if it hits anything in between you and the target, it'll go 'splat!' all over it.. and won't get anywhere near you. However, if it's a .50 cal round, its possible it could go through a soft wall, a fence, and through some guys arm before hitting your face and ruining your weekend.
Also, one thing that no one else mentioned: Movement and angles.
If you're turning around, and wearing, say, Power Armor, with those nice shoulder pieces, and you're turning, it's likely that the angle of the shoulder piece would deflect the bullet up, or to the side (up if it hit about the center, to the left or right if it hits the edge). Unless the bullet hit it right on (meaning at, say, a .45 degree angle form above), it most likely will not penetrate (unless it's one ungodly motherblammer and has a lot more powder than a .50 cal sniper round).
Most likely though, if it hits your armor at a angle, it would ricochet off, most likely just giving you a bit of a bruise, or at worse, grazing you as it zings by. Sir.