Weapons and damage question
I plan on running a Cain game in the near future and I need some help clarifying how to calculate damage. With blasphemies it's sort of clear: you roll your Psyche with any appropriate bonuses. Vector adds +1 if the air bullets are used to disarm, Tension's Severance adds +1 die if it's to protects someone or if it's against an immobile target. Ardence sabre adds up to +3 dice from tension the first time it was used and also sixes count as 2 successes. Okay.
But what about weapons? Is there any meaningful difference between a switchblade and a chainsaw? Or a pocket revolver vs. a shotgun? I can make my own rulings for them, same as with offensive blasphemies, sure, but what's the RAW interpretation here?