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    Advisory Panel Patrick Chadwick's Avatar
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    Trapdoor barrel thread?

    Can someone please give me the dimensions of the barrel shank on a Trapdoor?

    I know it's supposed to be in the book "Single shot rifles and actions", but I haven't got the book and although it's also available online, there seems to be a geographical block preventing me reading it here in Mauserland.
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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 Specializing in premium ammunition and reloading components. 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.
     

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    Legacy Member wjw's Avatar
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    Thread is 10 square threads per inch, Barrel shank length 1.433 inches with 0.875 inches threaded, Major thread diameter 0.900 inches, minor diameter 0.850 inches - barrel diameter nominal 1.0 inches

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    Advisory Panel Patrick Chadwick's Avatar
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    Many thanks! I wonder, why was there a fashion for square threads in the 19th C., as they are a PITA to cut, especially internally?

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    Advisory Panel Dick Hosmer's Avatar
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    My guess would be that they may have been considered to be stronger.

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