Yeah larger exist wounds as well and bullets do drag a lot of muck and dirt into wounds.

The US has developed anti personal Laser weapons which are designed to blind rather than cause fatal injures as this will cause a massive drain on resources and morale. Basically a blind soldier is more damaging to the enemy than a dead one. They can't fight and they need to be looked after.

Of course against the Geneva convention which states that weapons must be designed to kill rather than maim but that'd go out of the window if they were truly threatened.