[quote=@tipssyCalibrator]
<Snipped quote by BrobyDDark>
A long range attack that can break bones at (I'm assuming) a pretty fast speed sounds a bit OP. What can another person do to counter it?
[/quote]

It'd move about as fast as a regular gun bullet. If they have a strong melee attack that doesn't involve body parts, I imagine they could disperse the air bullet. Blunt weapons and objects, such as maces, shields, boulders, hammers, even gloved fists (though gloved fists are not recommended) could also block it, or smack it away like a baseball. Since it only moves as fast as a regular bullet, I doubt anyone in a shounen setting would have trouble dodging it, and since it doesn't pierce, I also doubt people would have trouble tanking it, but that's just me.