wheel not fitting?

(not sure if this belongs in tires, brakes or suspension, so please move it you do know)

ok, 71 duster, origenally with a slant six and manual drum brakes and 14 inch ralleys

i bought a used set of slotted mags, 14X6, small bolt pattern and had them installed today

the guys who installed them told me they snapped a stud, and gave me the adress of a shop that would fix it (on their charge)

when i went to leave i noticed a drag in the driver side front wheel (same one that snapped a stud) and a pulse in the brake pedal like when you have a warped rotor

i turned around and we pulled the wheel of and noticed the drum was pulled tight onto the flange (almost looked like it was way to tight, and 1/4 of an inch too deep on there)
it was pretty clear the drum was making contact with the brake backing plate, so somehow it got too deep on there

we removed the flange and knocked it out of the drum with a hammer and reninstalled it
so far so good
put the drum on, good
put the wheel on, and it did the same thing

(and the guy snapped another stud, so its being towed to the shop now)

any idea what is going on?

could it be the drum i have on there is off?
or would you suspect the rim?

the other side was fine

Unless I am misunderstanding something it sounds like the rim is hitting the outside diameter of the brake drum before it comes up against the flange on the axle.
Does it look like this could be the case?