10 gauge lifter double firing--both hammers fall

[thaynedelange]

Ok Guys, I know several of you must have dealt with this issue before. My Parker 10 gauge lifter doubles sometimes when I fire it. The trigger pull is about 2 pounds on both hammers! I have had the gun professionally cleaned and locks look brand new with no appreciable wear.

The gun double fires about 40% of the time. I understand that the angle on the sear engagement needs to be changed. Is this the correct way of correcting this issue? I would like to see a normal trigger pull of about 6 pounds like my other double guns have. Any help would be appreciated.

Thanks!

[Dean Romig]

2 lbs. is much too light on a game gun but 6 lbs. seems just a bit heavy... but it is your gun and your choice.

Having the sears stoned by a gunsmith who knows what he is doing is, as you presumed, the correct way to eliminate that doubling problem. I would have suggested a good cleaning but you have already taken care of that. Good luck. The right person should have no problem correcting that issue.





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[thaynedelange]

Thanks Dean,
I shot this pheasant this morning with my lifter D grade 10 gauge with factory 28" barrels. It was the last day of the Idaho pheasant season. The triggers are definately way too light!https://photos.google.com/photo/AF1QipPsc_Ji5h3qkGIrNormkj2g8yiYPHhXkQXoIZY2

[Brian Dudley]

As dean said, the trigger pull on both triggers is way too light. the recoil from the first shot is setting off the second. Both sears need reworked to firm up the trigger pulls and correct the issue of doubling.

[edgarspencer]

Hammer springs on lifters, and top lever hammer guns made by Parker, were always stout. These springs play, in part, to trigger pull. Lightening the springs for ease of cocking both hammers with the trigger hand thumb is something hunters learn to do early on when hunting with a hammer gun.
While there are many accomplished gunsmiths, not all are well versed in spring work, and lightening and polishing a hammer spring is not a job for just anyone.
Light framed guns shooting moderate to heavy loads need to have trigger pulls set accordingly; generally 4 lbs, or more.
With the exception of my skeet gun, I have only shot double trigger guns, and have learned to like my left barrel trigger adjusted to a half pound heavier than my right barrel. (3.5 lbs right, 4 lbs left)

[wayne goerres]

Simple solution. Only load one barrel. Ha.

[William Davis]

I have 5 Parker Hammer guns, never had to work on the locks other than to clean. They are more delicate than locks I have worked on and spares not easily obtained.

I have worked on a number of exposed hammer locks. Trapdoor Springfield's and US Muskets used in competition mostly. It's common and fairly easy to adjust trigger pulls by lighting the sear spring. When I do it I always have a spare or two, it's a trial and error job . Some will lighten the main spring. Usually a mistake but some locks need it, problem is getting misfires if too light. Altering the sear - hammer engagement is often seen and I think always a mistake for the home mechanic. Not many have the ability to improve on the factory set up. If it has not been "worked on" it's probably correct if it has been filed it needs work for sure.

My bet is somebody lightened the sear and hammer springs years ago. Unless you have spares to try better send it off to somebody competent.

William

[thaynedelange]

Thanks William,
The gunsmith I use has had a lot of experience with this issue. The gun is there now. He will gradually stone the sear engagement until both hammers are at 5lbs of trigger pull. It would be nice to have an extra set of hammer springs. Are the springs the same between 12 and 10 gauges?

thanks,
Thayne

[Brian Dudley]

Is this the same smith that put the bolt in upside down on your other gun?

[thaynedelange]

No. This is a different gunsmith.

[William Davis]

Last year I bought a Original Marlin 1894 25/20 for Silhouette competition. I know the inside of Marlins pretty well. This model is much sought after however the Hammer/Trigger was totally screwed up. It would not even function. Shop had sold it twice both times returned. I paid a low price expecting to go on a hunt for parts.

At home stripping the gun it was obvious the Hammer notch and sear were as they left the factory in 1912. Ordered new springs from Windners, installed the springs and it not only worked like it should trigger pull is very good smooth with nice clean let off. Offhand Sillouette rifle all Origional to meet class rules, very light gun, trigger pull makes for good scores.

I don't know of any gunsmith that's equipped to improve Lever action pulls by stoning Sears. You need a jig rifle specific free hand won't do and too many different rifles out there to keep the jigs on hand. Better to replace the parts.

Quality shotguns another thing and no doubt it's possible a good man can correct problems, if it has a problem from poor work years ago. You can bet it left Parker with proper sear engagement .

William

[thaynedelange]

The locks are beautiful inside. Nothing has been messed with. Either the sear notch has worn from wear and tear or it came that way from the factory. Whatever the case, the trigger pull is much too light. I am confident the gunsmith I have it at will be able to correct it. I will post again when I get the results.

thanks,
Thayne

[Paweł Janusz]

Ok Guys, I know several of you must have dealt with this issue before. My Parker 10 gauge lifter doubles sometimes when I fire it. The trigger pull is about 2 pounds on both hammers! I have had the gun professionally cleaned and locks look brand new with no appreciable wear.

The gun double fires about 40% of the time. I understand that the angle on the sear engagement needs to be changed. Is this the correct way of correcting this issue? I would like to see a normal trigger pull of about 6 pounds like my other double guns have. Any help would be appreciated.

Thanks!

Problem can be caused by what you described, but there can be other factors influencing it too. As wood edge it changes position of top tong to bottom tong moving location of triggers with arms push on sears, that can cause that sears can't reach full engage with hammers staying on tip of sear (very light trigger pull) I look that first and ensure that action components as well side plates are steady. If not I do full glass bad job to all parts after epoxy soak of wood. If wood is damaged to much by age or gun oil more intense work is require in order for epoxy to adhere or restocking is require.(in critical situation) Next step is to do a trigger job as tuning angkes&surface quality and spring tension in order to achieve safe trigger pulls to customers request.

[Dean Romig]

Good points Pawel.





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