User blog comment:Xanneer/PHYSICS!/@comment-24911350-20140529232559

RWBY is pretty much entirely realistic if you take aura, semblance, and dust into account.

The guns in RWBY also don't have a 30 ft. radius shockwave enough to knock someone a few feet backwards. Yang's shotguns are fairly plain shotguns, Ruby use the recoil from CR and her semblance to move as quickly as she does, and her Black cross rounds use Gravity dust.

That's quite a difference from a shockwave, which expands omnilaterally yet retains the force mentioned above, yet has virtually no recoil whatsoever.