I have a 1962 20 ga. Purdey (single, non-selective trigger with ventilated rib) that has developed a (hopefully) minor problem.

I was at an Orvis shooting school at Prairie Wildlife in West Point, MS this past week-end and the safety began to engage after the first barrel would fire. I suspect there is a spring in there somewhere that has gotten tired and the recoil from the first shot is sending the safety slid back into the safe position. This was particularly aggravating when trying to shoot doubles because I was not used to having to push the button back to the off position after shooting the first barrel.

So, can anyone recommend a good gunsmith who I can trust my Purdey to to look into this problem? I live in the South if it makes a difference. Thanks for any and all advice.