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Showing results for tags 'failure to eject'.
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Hello, Recently, I sent a brand new Tanfo Stock II over to Patriot Defense for their patented tuneup and barrel reaming. They also installed the extended firing pin, titan hammer, bolo, one piece sear, and Xtreme trigger. Out of the box the trigger was PHENOMENAL, both in DA and SA. Unfortunately, the first range trip was plagued with failure to feeds, and a weird "ca chunk" whenever the slide cycled. After perusing the forums here, it seemed I needed to chamfer off the breechface edge and polish the breechface. I got in contact with PD and they confirmed it was probably the breechface edge issue and gave the go ahead to chamfer the edge while also telling me Tanfo's need a 1000 rounds to break in. They even stated there were no issues when it was test fired at their facility? I chamfered off the edge and breechface little by little like everyone suggested until the failure to feed issue stopped, but the "ca chunk" continued. Thinking this issue stemmed from the wolff 8lb standard recoil spring, I tossed in a wollf 10lb standard spring to no avail and a factory 14lb spring which yielded the same result. After noticing weak ejection with softer ammo and sometimes rounds getting stuck with the slide out of battery, I bought a new extractor with the (9) stamp and an XP extractor spring to cross this off the list (the original had a bunch of machining marks and no (9) stamp). Next range trip, the "ca chunk" continues and within 100 rounds two were somehow stuck in the chamber while the slide was 1/8"- 1/4" out of battery. I had to take the gun apart to get the rounds out since the slide was stuck. This makes me think there is something wrong with the barrel after it was reamed, maybe. The mags I am using are brand new K9s. The issue happens with all mags (12) and all ammo. Everyone that has seen it in slow mo and shot it agrees it's not cycling right. Any thoughts??
If you have run your competition ammo in your Walther Q5 and/or Q5 SF through a chrono, please list your model gun (Q5 or Q5 SF), bullet weight (115, 124, 147, etc.), average power factor, encountering any issues (none, Failure to Extract, Failure to Eject), and if you are using a factory or different recoil spring (list new weight spring weight). I hope to publish my complete results next week (I need to chrono my competition ammo). I am not asking for your load data but just the bullet weight you are using and the average power factor you determined after running the ammo through a chrono. My data Model Gun: Q5 SF Bullet Weight: 147 Power Factor: TBD Encountering Issues: None Recoil Spring: Factory As per a response I received, depending on the bullet weight you are using you may need to load to an average power factor. I'm also assuming at this time that the factory recoil system is set up to handle NATO ammunition. With your help in providing the information requested above, I think we can help isolate it down. Again, assuming at this time, I believe changing the extractor spring to Keith's new version and a lighter recoil spring (depending on your power factor) will help prevent the issues some are having with Failure to Eject and/or Failure to Extract. I also believe the Walther Q5 and Q5 SF come with really fast barrels. So if you haven't run your ammo through a chrono, I think you will be surprised at the results when you do. If I can and can figure out how to do it, I plan to insert a spreadsheet here to gather all the data received. Thank you!!! Walther Q5 and_or Q5 SF Data Request.xlsx