32 cal. rim fire bullets

Question
if available, do you know where to buy from

Answer
Jim,

You most likely will not be able to find this caliber anywhere.

There are some online resources like the following that may have some from time to time...
http://www.rtgammo.com/obsolamm.html

Basically, you are not going to find this kind of ammo to shoot.  It has been obsolete for a very long time.  When it is available it can range from $100 to $150 per box.  Mostly it is bought by collectors so that they can have period correct ammo for their prized specimen.

Sorry I don't have better news...

Best regards,

Doug Little