Alot of it depends on how rusty the pot is... is it pitted? its been my experience that potts that are pitted dont come out very well...
If you want to give it a shot, bring the pot in and add some vinegar to it... then after a soak scrub it out... sometimes I have had to do this several time...
The last one I did I let the vinegar set for a few days...IT was bad.. dumped it (vinegar) into a jar and added steel wool to the jar... it set for a few weeks and I used that to stain my gun:>
If you want to give it a shot, bring the pot in and add some vinegar to it... then after a soak scrub it out... sometimes I have had to do this several time...
The last one I did I let the vinegar set for a few days...IT was bad.. dumped it (vinegar) into a jar and added steel wool to the jar... it set for a few weeks and I used that to stain my gun:>