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Thread: Cetme L build planning

  1. #171
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    Looking good! Keep the pics coming.
    14EH AIT Instructor-PATRIOT Fire Control Enhanced Operator/Maintainer

  2. #172
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    So after test assembly, the rifle will not go into battery with the trigger group installed. It seems the ejector is putting too much upward pressure on the bolt carrier, and it hangs if you bring it all the way back.

    Second problem is feeding from the magazine. I didn't heed Holescreek's warning and the feed chamfer on the rear of the barrel is just a tiny bit too small, or the feed ramp on the trunnion is a tiny bit too wide. About 25% of cartridges feed correctly, most just ram into the edge of the chamber and stuff the bullet back down the casing. Once the cartridge is shortened, they usually feed ok.

    Seeing as the barrel is at the bottom of a deep dark hole, and it is NOT coming out, I plan to use a countersink on the end of a drill extension and turn it with a tap handle to open up the chamfer on the barrel. It will take very little more to get it feeding properly, but I worry about having toouch unsupported chamber.

    On a positive note, by single-feeding it, it does fire and cycle the action with fairly mild recoil!

  3. #173
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    Quote Originally Posted by Xnke View Post
    On a positive note, by single-feeding it, it does fire and cycle the action with fairly mild recoil!
    That's a good thing!
    14EH AIT Instructor-PATRIOT Fire Control Enhanced Operator/Maintainer

  4. #174
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    I gotta admit that your comment about the Ls having small chamfers concerned me, but not having seen one in person I wasn't in a position to press the issue. The Cs have a 120 degree chamfer 5/8" in diameter around the chamber and a slight radius into it.
    Last edited by holescreek; 01-12-2019 at 09:59 PM.

  5. #175
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    Yeah, they have a pretty small chamfer from what I have seen. I've got an 82* countersink here, but I may need to make something 110-120 degrees to get this to work without weakening case head support.

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