User blog comment:Icchi/Weapons incoherences/@comment-4830106-20130730172208

Remember, this is the warped logic of anime. Physics don't have to work, as long as it keeps the audience interested.

I did notice all the recoil inconsistencies with Crescent Rose and Ember Celica, however. I feel like when it's only in gun form (not with the scythe extended), Crescent Rose has a recoil dampener, so it's not as powerful. When in scythe form, Ruby either uses the recoil to help her speed, or she plants it in the ground and uses it as a turret.

With Ember Celica, those are most likely shotgun rounds, judging by the shells. So when she uses the incendiary rounds (and I thought they were flares, actually), they shoot out with a lot of power, but little accuracy.

About Wilt and Blush, Blush most likely has a firing mode when Wilt is sheathed that uses Wilt like a projectile, and when unsheathed, it works like a normal shotgun. As for Wilt, Adam uses the more generic style Iaido, rather than  Iaijutsu, which is specific to the katana.