MCU Hawkeye arrows are superior to bullets

Hawkeye can consistently pierce ultron bots with his arrows and destroy them....

These ultron sentries have been shown to be completely bullet proof.... There's also this

This arrow pierces Iron Man's armor.... even the mark 1 is shown to be bullet proof

Obviously all of Tony's suits are superior to one he made in a cave.

This not only makes him superior to Superman...

But also Hulk!

Based on arrow feats here, they're better than 50 armed men. These dudes came with guns first, which Hawkeye's magnetic arrow yanked. Then came gas arrows, freeze arrows, spike arrows, grenade arrows, and freaking Pym Particle arrows.

Hawkeye in general is pretty solid. Remember the pack of Outriders: