Take it to a gunsmith. I have an AH Fox that has a serious wiggle but shoots safely. It needs a hinge pin but still quite shootable.

WRT Robins question: I would fix it if I were going to shoot it. If I didn't I'd be thinking of the damage I was doing every time I pulled the trigger. I also think that only an American would even ask the question. The British would not think twice of repairing a loose Purdey or H&H worth $100,000+. They'd do whatever it took to make the gun properly functional if it were their regular hunting gun regardless of value. The more expensive it was the more likely they would fix it I'd guess.

"Highly Collectable" usually includes high condition and most high condition guns do not rock on the hinge. However, the value of a highly collectable gun in well used condition should not suffer if some maintenance is performed on the hinge area.

Robin
I would have the gun repaired. It is my feeling that a proper repair does not significantly reduce the value of one of those rare high dollar Parkers but one in need of repair does. A mechanical repair is a lot different than a cosmetic"touch up" and must be disclosed upon sale. JMHO
David

Thanks to all who have replied.....this gave me exactly the information I needed.....I need to go do some buying now.......as for shims where would I find these....are they special shims for shotguns?

Any good hardware store will have shim stock in either steel or brass. Brownells sells a package of shim stock in various thicknesses.

Bob, you get some shim stock and cut it yourself to fit the pin. I shoot two or three guns I've shimed, and a couple without shims that are tight with the forearm on, but slighly loose with it off. A drop of " Black Max " from Brownells will keep the shim in place. Paul

Thanks Ed and Paul....can't wait to give it a try....