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I need some direction to troubleshoot an extraction problem.

sorry for the long explanation

I have 2- 220 ST 's one is a Langdon with black slide, the other has the standard stainless slide.

Both have internal ejectors, I am left handed and was using the same reloads in both,

Both guns will eject the case apx 20 feet when working correctly.

Both guns freshly cleaned and lubed

I pulled them out the other day and took them to practice to run some stages to get ready for a upcoming match, I had not shot them in 5 years

The Langdon was shooting fine for the first 3- 4 mags then I had a failure to extract the case, empty cartridge was in the chamber and the magazine was trying to load another round behind it. This happened about 3-4 rounds per 100 shots,

Took it apart lubed it up, checked the extractor everything looked good, put it back together, and was still getting the occasional failure to extract. Not consistent but occasional 3-4 rounds per 100.

It was getting dark and I put the Langdon aside and decided to run the standard 220 ST the rest of the evening, it ran well no problems, took it to the match and had no problems at all with it.

Where do I start the trouble shooting an occasional problem?

Should I start with a new Ejector?

Someone said limp wristing?
But I shot the other ST with no problems

Scrape carbon from under the ejector - done

Bad brass? it was a mixture of brass in reloads,
the bullet, powder were all the same, the brass which did not eject appeared similar to all of the other pieces. And the same reloads worked in the standard ST.

Any thoughts?

Posts: 1893 | Location: Indiana | Registered: March 17, 2002Reply With QuoteReport This Post
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I was a police armorer before I retired and worked on the P220ST for over 10 years. It was our standard duty weapon. Occasionally I had to replace the extractor occasionally but the number one extraction related problem I delt with was the locking block. I have never been able to figure out why. No cracks or visible damage. I would go to the range and start swapping out parts. When I would switch out the locking block the extraction problems stopped. To confirm it I would put the bad locking block in another P220ST that worked fine and it would start malfunctioning. I would also check the recoil spring if the gun is getting old. Hard to say what is wrong without actually seeing the weapon. Good luck.
Posts: 42 | Location: Ohio | Registered: December 20, 2005Reply With QuoteReport This Post
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I bought a P220ST when they first came out.
At the time there was a big problem with the extractors. Sig denied there was a problem but would send out a few extractors if you complained about it. A new extractor always solved the problem, in my case, for about 700 rounds.

Bruce Gray addressed the problem and did find that the factory internal extractor was indeed designed incorrectly. He devised a new extractor and machining to the gun to solve the problem.
I would contact Bruce Gray and get his input.
Posts: 4139 | Location: Chicago, IL, USA: | Registered: November 17, 2002Reply With QuoteReport This Post
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For the responses

It appears it may not be a simple or inexpensive fix

I will give Bruce a call to discuss this

I will also check some pricing and availability on extractors and locking blocks

Posts: 1893 | Location: Indiana | Registered: March 17, 2002Reply With QuoteReport This Post
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