RE: sulfur smell??
You fail to mention the kind of powder you were shooting but I would guess black powder or Pyrodex. I really do not notice the "smell" anymore. Maybe I am used to it. You will get used to it. If you want to stop the stink in the house, swab the bore real good with a swabbing solution a few timesbefore you bring it into the house and it will cut the stink down a great deal.