I have an S&W Model 39 that is acting up. It's extracting a fired round but not ejecting it, tying up the gun. Sometimes it feeds the next round; sometimes it doesn't.

It's been to a local smith twice and he's been unable to correct the problem. I really like the gun, find it far more accurate than they were reputed to be and it has a great trigger pull. I'd like to get it fixed.

Can someone recommend a gunsmith who has enough experience with these to get it fixed correctly?

Thanks.