three story fall

Komaba pulled a handgun of his own from his belt. It was a large handgun with an odd
form that had two thick magazines sticking into it just in front of the trigger.
This wasn’t an attack Accelerator could avoid by moving his head to the side.
(Shit!!)
He prepared himself and jumped with all his might to the side and then right off the
framework.
The second floor was next.
But since he dove off without looking, he messed up the timing on his landing and
struck the framework without being able to soften the blow. He fell down another floor
because of it. The impact made a dull noise. He had partially landed once partway down,
but he had fallen to the ground from the third floor all the same. The pain was more
than one could bear just by gritting one’s teeth. And for someone who left everything to
his powers instead of training his body like Accelerator, it was even worse.
“Gwaaaah!!” Accelerator yelled while holding the top of his shoulder.
Komaba ignored his scream and pulled the trigger.
As he rolled on the dirty ground, Accelerator somehow managed to avoid the bullet.
The power of the bullet was much greater than a normal one. It pierced a steel frame
partway down and the thick piece of metal exploded from the inside. The frame was
transformed into a large number of small metal pieces and they rained down on
Accelerator. He was rolling on the ground, but he still received small tears on his skin.

- Toaru Majustsu no Index Volume SS1, Chapter 2 Part 4