Help with a Buckmark Pistol

[marcodo]

I have a buckmark pistol made in 2005.

I have hade some reliability issues lately that I want to run by you guys.

When the pistol is cleaned it will run couple of hundred rounds without a hiccup. Soon thereafter I begin getting failure to fires. Review of the caseing suggest that the fireing pin is just knicking the cartridge base...not center enough to cause ignition.

I replaced the guide rod, springs, fireing pin, housing...everything but the extractor.

I have not removed the extractor to clean...sprayed with cleaner but not removed.

I have place a cartridge under the extractor and it appears that it may be holding the 22 not completely centered..which may be the cause of the FTFires. I really don't know
I have pics at home if needed.

It does seem less common when I feed it minimags and more common with the cheaper stuff. Interestingly it goes away for a short time after its cleaned soon to return.

Please Help!

Should I remove and clean (or change) the extractor?...Not sure how to do this....is it something else?

Thanks

 

[gb6491]

...When the pistol is cleaned it will run couple of hundred rounds without a hiccup. Soon thereafter I begin getting failure to fires...

Have you checked your sight base when this happens? Every now and again, my pistol will do the same thing (at about the same round count) and, invariably, I find one or both of the sight base screws has worked loose. A few turns with an Allen wrench (which I carry in the pistols case) fixes the problem. I've also found my BM likes grease rather than oil as it's slide lubricant.
Regards,
Greg

 

[marcodo]

Wow...yes it does loosen up!

Didn't realize this would cause the problem...

I will pay more attention to that

Thanks!

 

[DammitBoy]

The solution to your problem is to get rid of the Buckmark and buy a Ruger Mark III.

 

[mnrivrat]

The last mistery failures I seen on a Buckmark where pretty much as you discribe.

The cause on the one I fixed was the disconnector linkage rubbing on the inside of the RH grip. Worth checking yours for that problem also.

 

[marcodo]

Thanks Guys...

The screws were loose for sure.

How can you tell if the disconnector linkage is rubbing...if so what do you do about it?

 

[mes228]

Misfires

I know little about Buckmarks but a similar problem on a Smith 41. Powder residue would build up on the bolt face resulting in light pin strikes. A toothbrush was the answer. After a hundred rounds or so, hit the bolt face with the toothbrush. A 2 second fix and it was good to go. Never seen the problem since on anything else.

 

[mnrivrat]

How can you tell if the disconnector linkage is rubbing...if so what do you do about it?

If you remove the right hand grip you would be able to see rub marks on the inside of the grip where the linkage runs against it. Also you will see a wear pattern on the outside of the linkage if it is rubbing . A little sanding of the inside of the grip at the rub point (or dremel) .

I noticed this one being a problem by pushing down on the upper tip of the disconnector where it comes up to meet the slide. It had a tendency to sort of hang up, so I removed the grips and found the rubbing. Some light rubbing between the parts is likely normal because of the design -it is a problem when the disconnector does not run freely however.