ruger revolver jamming during decocking

[9mill]

Its not really jamming but some part is grinding against another part as I lower the hammer. anyone know what could be the problem? I've deburred and polished just about everything.

[wtkaiser]

Need more details. What kind of gun (Redhawk? LCR? Blackhawk?) .22 or centerfire? Can you possibly get a picture in here?

[9mill]

gp100

[Brandon04GT]

If the apparent problem is what I am imagining.....then what you're supposed to do is fully lower the hammer before releasing the trigger. If you release the trigger before the hammer is fully thumbed down, then it will feel/sound like it is catching on something. At least this is what I've noticed on my SP101. But i'm sure the revolver guru's will chime in here soon...

[9mill]

brandon thanks, with the stepped hammer and transfer bar in order to safely decock it you are suppose to release the trigger so the transfer bar drops away from the firing pin. Either way is still is dragging on something, I did notice when the dragging is ocurring if I press the trigger alittle the roughness stops but the trigger still takes an out of ordinary jump forward. what has me perplexed is why this only happens about 20% of the time. any help is appreciated!!

[Brandon04GT]

brandon thanks, with the stepped hammer and transfer bar in order to safely decock it you are suppose to release the trigger so the transfer bar drops away from the firing pin. Either way is still is dragging on something, I did notice when the dragging is ocurring if I press the trigger alittle the roughness stops but the trigger still takes an out of ordinary jump forward. what has me perplexed is why this only happens about 20% of the time. any help is appreciated!!

Oh yeah....I overlooked that. No idea what's causing your issue then

[JoshuaS]

Have you taken apart the gun, examined the pawl or the spring the goes under the trigger?

[9mill]

yeah josh, the trigger spring channel has been deburred etc. the pawl has no marks on it so Im assuming its fine along with all the other parts. I polished the hammer strut.

[Creampuff]

Can you pull off the grips and post up a pic?

[9mill]

cream are you wondering if the strut & clip are orientated properly? the side of the strut with the more angled edge is pointing forward. Im sure that is installed correctly. Im almost sure its the hammer notch and trigger sear rubbing because when the rubbing occurs if I press the trigger a tad the rubbing goes away. But I can't figure out how those two parts are suppose to work when being decocked.

[wtkaiser]

I'm not sure if it's constructive, but if it's only happening 20% of the time it could be a cylinder issue. I have seen a tiny flake of powder get under the extractor, too. You sound pretty sure of yourself, but are you sure the beast is clean? Crane, extractor, cylinder star, the whole ball of wax?

[9mill]

its unfired so i took it apart and debbured everything and flushed everything out.

[Old4eyes]

I was able to repeat 9mill's complaint on my GP100. And then I found that if I put the thumb of my free hand down into the V formed by frame and the hammer, rather than having it higher where the hammer hits the transfer bar, the roughness seems to disappear. Put the thumb in low for safety measure, pull and release the trigger and then drop the hammer down slowly with the thumb of the strong hand, that grinding feel disappears.