I think I know what you are saying- BUT
 

Brother Dean Romig's advice about having a good double gun man who knows Parkers look it over is "Spot On"-- Wear at the hinge pin where it makes contact with the milled "C-hooked" radius in the lug is common with doubles that have seen some usage, and can be corrected-Many older quality double guns were fitted at the breech by patient craftsmen with smoke lamps, files and stones- all hand work.

Parkers and LC Smiths were the double guns I grew up with in the family- but I recall my Grandpa's best friend and hunting partner shot a AH Fox- 12 engraved ejector gun with Krupp barrels- My Grandpa usually shot Winchester paper ranger bird loads, one day he bought a box of UMC instead-
Turned out that the rim dia. of the UMC hulls was about 0.0015" larger than on the Winchester shells- my grandfather owned a machine shop and "miked" the shells that night- as only the Winchester shells would allow Mr. Bontrager's Fox to close properly- that's an old time example of how precisely our older doubles were fitted-

If your Parker has selective ejectors, you'll notice a set screw in the end of the doll's head barrel extension- it might be possible that the milled slots in the extension are in need of attention. I have never (yet anyway) heard of a barrel rib extension on a Parker, AH Fox or LC Smith being part of any possible "off face" but as the wise men say- "Never Say Never"-

If you care to give a location, I am sure some of the members here can recommend a good competent gunsmith in your area to check over your "Old Reliable"--:bigbye:

It has a extractor, both shells same time.

Remove the extractor (1 screw) and clean the bolt, the bolt bite, the water table and the barrel flats with Hoppes on a Q tip. Put the gun back together and see if it closes tightly without the extractor. Debris under the extractor can spring the frame.

Best, Austin

Calvin, I agree that lack of routine cleaning under the extractor can easily compound wear to the barrel hook.Cleaning that area is vital. The specific reason for the off face condition is due to different hardness between bearing surfaces. The reciever and hinge pin are heat treated, the barrel lug hook and dolls head are relatively soft and are not treated. Upon firing the inertia placed on the barrels is a forward stress or movement. As this stress occurs, the softer metal will yield and compress to the harder metal. Thus loose on face.
Shimming and hinge pin replacement are at best, temporary fixes. The only best fix is to increase the metal at the hook radius. Due to the barrel lump brazing and rib soldering, high temps need to be avoided. Lazer welding is the only, low temp process "radiating heat", that protects the surrounding areas.
Lazer welding is the only welding that is totally controllable in penetration and build up thickness. The steel in the fill material is harder that the original steel, extending the life of the fix.
Refitting the barrels and extension should only be done by someone that is well versed in this process. The fix should cost you between 3 and 4 hundred bucks, well worth it considering the extended life to the gun. Also the fix should be totally undetectable. It can be done.

Brad

Thanks fellows! I'll try that, I have cleanded under extractor but not took it out. I think the old girl has just been shot a lot she looks it, a tool 4 putting food on the table. Checkering gone sometimes I wonder if it has been sanded, some of the corners that fit up 2 the metal are rounded a little. And sometimes i just think its wear, dosen't matter she is still doing her job. she been around since 1881 I think shes just a little loose. I'm going 2 fix her up right some of these days. O yeah I want a pretty 1 someday. I like hammers that why we came together I wasen't looking 4 a parker when I started looking 4 hammer gun but happy thats what i got!!!!!!!!!! lifter even cooler. ch