What is the best shop with a large inventory of used revolvers in NJ or PA.     looking for older smiths or colts.

Heritage guild usually has a pretty good selection and they are a little more willing to cut a deal on on used guns then new ones. They are way high priced on the Colt Pythons but some of the less well known Colt models they aren't horrible on.

Here's a link to their inventory http://www.heritageguild.com/usedguns/ but they are usually behind on what's actually in the store and they seem to shuffle them around between stores pretty often so might be best to just go in and see what they have.

 

I bought my S&W 617 6" from them used and I was able to talk them down a little on the price. I don't think I could have gotten a better deal elsewhere on it and no place around had a 6" 617 new or used so it worked out for me.

Never hurts to look...

 

Good luck with the search

-Jim