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Thread: Bren L4 Build Oddity? (New to Bren builds)

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  1. #11
    Legacy Member Heaxyxmetal's Avatar
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    I definitely understand this. I'm not on a time constraint with this project. So no rush.

    Which sections will have tight tolerances? I can't imagine the outside walls will have functionally tight tolerances. I figured the face that the barrel butts up against will have a tight tolerance and that's why I'm leaving as much of the original intact as possible. All of the faces on the inside of the magwell are original and in good shape. They just need some slag cleaned off. As far as the grooves for the magwell dust cover go, I can machine those after I get the other work done. I'm not worried about that. The barrel bore in the receiver is still intact as well.

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    A Collector's View - The SMLE Short Magazine Lee Enfield 1903-1989. It is 300 8.5x11 inch pages with 1,000+ photo’s, most in color, and each book is serial-numbered.  Covering the SMLE from 1903 to the end of production in India in 1989 it looks at how each model differs and manufacturer differences from a collecting point of view along with the major accessories that could be attached to the rifle. For the record this is not a moneymaker, I hope just to break even, eventually, at $80/book plus shipping.  In the USA shipping is $5.00 for media mail.  I will accept PayPal, Zelle, MO and good old checks (and cash if you want to stop by for a tour!).  CLICK BANNER to send me a PM for International pricing and shipping. Manufacturer of various vintage rifle scopes for the 1903 such as our M73G4 (reproduction of the Weaver 330C) and Malcolm 8X Gen II (Unertl reproduction). Several of our scopes are used in the CMP Vintage Sniper competition on top of 1903 rifles. Brian Dick ... BDL Ltd. - Specializing in British and Commonwealth weapons Chuck in Denver ... Buy-Sell-Trade .. Guns, Cars Motorcycles Your source for the finest in High Power Competition Gear. Here at T-bones Shipwrighting we specialise in vintage service rifle: re-barrelling, bedding, repairs, modifications and accurizing. We also provide importation services for firearms, parts and weapons, for both private or commercial businesses.
     

  3. #12
    Legacy Member Brit plumber's Avatar
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    As you’ve said, the breeching face of the barrel and barrel nut, the detent for the top cover and the mating cross detent for the barrel nut. The L4 modification included a role pin inserted from above to form the seat for the barrel nut detent spring, with out this the detent won’t work. How’s the recess for the front lip of the magazine?

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  5. #13
    Legacy Member Heaxyxmetal's Avatar
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    Sorry for the long delay getting back to this thread. I had a lot going on in my life. New job, new house, etc. Anyway, jumping back in head first into this build I picked up some necessary tools and parts I needed to get moving on this L4. This whole thread was about the ring/bushing/spacer object that was protruding slightly from the barrel socket. Well, after quite a bit of frustration and persuasion with some prying tools and a blacksmithing hammer. I removed the bushing from the barrel socket. This needed to be done as it was cocked and then welded at an angle due to building up weld on the top front area behind the barrel nut slot and not seeing it in the first place. Luckily, its a very simple bushing and machining a new one shouldn't be too hard. It seems to have originally been a .001" press fit into the machined area of the face of the receiver. Seeing as I have enough of the bushing left to get a measurements on it. I should be able to replicate it in a few minutes on a lathe. The difficult part now will be to machine out the counterbore that the bushing fits into. When I built up weld in the area directly above it, a piece of it was welded to the top side of the counterbore leaving some of it permanently welded in. I will either have to get creative with my mill, or very carefully remove the rest with a rotary tool. If only I could get my hands on a full set of blueprints for this thing. I've scavenged some pictures of old blueprints for Brens, but most of them are very hard to read.

    Brit plumber, sorry for the delayed response to your question. The recess for the front lip of the magazine is untouched other than some weld slag that can be easily removed. I picked up a couple of (surprisingly expensive) L4 magazines that are in good shape. I should be able to use these the get me in the general ballpark of placement of the receiver pieces.

  6. #14
    Legacy Member Kev G's Avatar
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    is this the info you are after ?

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    Legacy Member Kev G's Avatar
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    Item 2 in the drawing

  8. #16
    Legacy Member cal50's Avatar
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    This was laser scanned from one of my Bren cut receivers.
    The dimensions minge be handy~











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