Angel: You got some great advice here before I had a chance to get back to you. Strip your action first & clean it thoroughly. If that doesn't fix the problem then having the sears rebuilt would be the obvious solution.

Best Regards, George

Thanks for that bit of info Richard.

Thanks George!!

Lawrence DelGrego has the actual Parker Bros "machine"/"jig" that will recut the proper angle on the sears if they are worn. My 1913 Trojan doubled, did that a couple of times 3 seasons ago. A real attention getter when it went off and was loaded with 1 1/4 Bismuth, but it killed a drake mallard and nearly ripped my trigger finger off. Once Lawrence has the gun apart the milling/filing of the sears takes a couple of minutes at most.

Thanks Pete!!

I am going with Daryl Corona's reply. Hammerless Parkers do not normally have worn sears. Hammer Parkers often have damaged or broken sears because they fall on the cocked hammers or get bumped on the cocked hammers. This does not happen with hammerless guns. My diagnosis is "dirt".

Angel,
Your 1oz loads are not likely the culprit. Try some of RST's lite 7/8oz. loads for the 16. You and the gun will love it and they crush targets as well as the 1oz. loads. Bill is right. Gunk. Most times the simplest solution is usually the answer. Good Luck.
Daryl.

Daryl, that's what I use on my Damascus 16ga.

Dirt the most likely culprit. After sitting unfired for 50 years, my Pop's GHE 12 did that to me and after taking it to a reputable gunsmith, the problem was solved with a thorough cleaning. The smith actually replaced the screws to the original timed position.

FWIW. My Trojan that was doubling was clean. Larry had the gun apart two years earlier and everything went through the ultrasonic cleaner and had been properly put back together. Scott Kittredge had a GH that doubled and cleaning did not resolve it. When Larry repaired the sears in my Trojan he commented that more guns come into his shop each year for the repair of worn sears than for any other issue.

I hope that a thorough cleaning resolves the problem. However I will not take a chance with sears. They are the only thing preventing your gun from an unintended discharge. If the jar from firing can trip a sear so could so could the jar from setting the gun down. A gun that doubles is a potentially lethal threat to the user and all those around it.

Good luck.