Wouldn't this be a 1 hit kill?
Explanation.
Bullet travels into enemy, it doesn't just bounce off, it explodes, pellets everywhere, some go outside of him to injure other players. But the pellets that stayed inside would cause internal bleeding and massive artery failure.
Maybe 4th degree burns.
In other words, if it explodes inside him, it is a one shot kill, and pellets fly out hitting other enemies.
Cause I am pretty sure a sniper bullet doesn't bounce off human/blockhead flesh.