Toaru Kagaku no Railgun

[Buffalobiian]

edit:
As bad as the Telestina arc was, we also learned that Mikoto uses the coins to limit the range on her railgun. The larger an object she uses, the further it goes, and the more it destroys. The coins disintegrate at exactly 50 meters. Her true range is measured in kilometers.

Not exactly. The coin's range is 50 meters because it disintegrates. Something heavier could arguably travel further given that Mikoto has the energy to propel it (she does, but to what extent we do not know). In the end, it's the durability of the object less so than the size or mass. Size in particular would increase drag and further reduce the durability of the shot.

The blonde girl is probably the most annoying member of item so far. That speech pattern really irks me to no end.

I thought it was kinda cute, but she's a bitch.