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Unread 03-01-2023, 11:17 PM   #1
G.T.
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Default Drum beat! Pretend crazy or real crazy!

Hi to all, if you remember last time I reported on drum magazine issues, I had installed a slightly longer ejector and it aliveated the ejection problem I was having with a customers drum mag! I thought it was cured, but in running a few strings thru the drum I still experienced very random ejection issues! Soooo, is it the drum or the Luger? Finding out proved to be much more difficult then I would have ever imagined. I finally had tried the drum in enough Lugers to determine that the problem was not with the drum.
Sooo, testing the Luger and swapping parts between working and non-working Lugers, I isolated it to the upper receiver, and then to the toggle train, and then, where do you go next! After repeating the testing several times, I came to the conclusion the culprit was the very bottom recessed lip on the breechblock!!! If it has been refinished, or worn so that there is a radius on the lip, the empty brass is coming off the extractor before it even gets to the ejector. I installed a sweet toggle train off of a 1940/42 luger and the combination worked perfectly! The I realized, I had once posted a note about installing a new breechblock into my bench testing Luger and it threw the brass out so robustly that it almost eliminated my computer screen!!! So, there you have it, and I have to add, the only time it affects the ejection is with the drum? With a stick mag, it runs fine. The drum brings out any little problem. You need a healthy Luger to use the drum. Best to all, til....lat'r....GT
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Unread 03-02-2023, 12:55 AM   #2
rolandtg
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You always make the most interesting posts.
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Unread 03-02-2023, 11:26 AM   #3
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Default Thanks Dana!

I appreciate the kind words! I always give considerable thought as to what I'm going to write, and one of the prerequisites is that it be food for thought, or a knowledge sharing experience that fellow collectors, forum members, or Luger shooters can relate to?
I was thinking about what it took in effort, to reach some of my conclusions on this ongoing quest? As to date I have run about / approx. 16,000 rounds thru my bench test Luger, and another 6,000
rounds live at the range. That's where these Luger drum malfunctions and demons live and the problems I now find are in un-charted territory, AND, beginning to seriously challenge my skill sets... Still, I suit up every day to do some more polishing and tuning to give my fellow forum members a fighting chance to enjoy their investment in our hobby!
Best to all, til....lat'r.....GT..
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Unread 03-02-2023, 05:58 PM   #4
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So satisfying to be able to determine the root cause of a problem like that !
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Unread 03-02-2023, 07:34 PM   #5
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Default Hi Stu

It's more satisfying adding something, "relatively finite" (Oxymoron?) to the knowledge base! Now if I can just retain what i've learned! Best, til.....lat'r.....GT
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Unread 03-02-2023, 07:57 PM   #6
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Oh man!...retaining what you have learned is the hardest part of advancing years. I speak from experience.
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Unread 03-04-2023, 08:27 PM   #7
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I agree that your posts are interesting. Thanks for all of your insight into Lugers! I recently bought one of the GT Special drum magazines but have yet to try it out. I will get it to the range soon!
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