If you are referring to BATF form 4473 then you would be incorrect. The form is required for transfer between a licensed firearm dealer and the purchaser and does not delineate between pistol, rifle or shotgun. Line 11(e) is included below.I don't believe the permit to purchase a handgun asks about drug use.
e. Are you an unlawful user of, or addicted to, marijuana or any depressant, stimulant, narcotic drug, or any other controlled substance?
Since this is a federal form, it is asking if you are an unlawful user under Federal Law.
The answer to that would be yes for all of us that partake in Cannabis.